From Sketch to Silicone: How a Custom KUMOCOOM Piece Comes to Life

From Sketch to Silicone: How a Custom KUMOCOOM Piece Comes to Life

A custom piece starts with an idea. But once that idea meets silicone, things can become a little unpredictable.

When people think about a custom silicone toy, it is easy to imagine a straightforward process: choose a model, pick some colors, and receive the finished piece.

Our experience has been much more involved.

A KUMOCOOM custom piece can begin with a hand-drawn sketch, a mood board, a few reference images, or simply a description of something a customer has imagined. From there, we discuss what they have in mind, our artist develops the idea into a sketch, and we work together to find a version that can actually be made in silicone.

Then comes the part none of us can completely control.

The pour.

Silicone is not a digital canvas. A gradient may blend differently than expected. A drip may flow in its own direction. Glitter that looks obvious in a sketch may become subtle once surrounded by an opaque color. Even two pours using the same colors and general process can have small differences.

That is why one of the most important things we have learned from making custom pieces is simple:

Sketch ≠ Final Silicone Piece

The sketch gives us a direction. The silicone determines how that direction becomes real.

Here is what that process has looked like through some of our first custom projects.

*From a sketch on the screen to a real silicone piece — the final result can sometimes surprise us.


From an Idea to a Sketch

Every custom project starts with communication.

Some customers come to us with a finished sketch. Others send a mood board or several reference images. Sometimes they simply describe a color combination, a character, or a particular feeling they want the piece to have.

Our job at this stage is not only to understand what the customer wants, but also to think about how that idea can work on a specific silicone model.

We may discuss the base color, gradient, drip placement, painted details, glitter, shimmer, or other visual effects. If the concept needs further development, our artist turns those discussions into a sketch.

For many projects, we create two possible versions so the customer can compare different directions and choose the one that feels closest to their original idea.

The sketch is therefore more than a pretty preview. It is where an idea starts becoming a practical design.

But it is still only a preview.

Some things that look simple on a screen can behave very differently when they become three-dimensional silicone.



Custom Story #1: Shadow Paws — Nightshade Drip

One of our first custom Shadow Paws began with a very clear request.

The customer wanted a black Shadow Paws with green drips and hand-painted cat-face details on the base.

Because the direction was so specific, our artist was able to develop a sketch relatively quickly. While working on the design, however, our designer had another idea: what if the green drip also had a glow-in-the-dark effect?

We suggested it to the customer, and they loved the idea.

They also asked us to match the green to the green used on our Shadow Lock Harness. The goal was to have the two pieces coordinate visually when used together.

That small detail made the custom feel even more personal. We were no longer simply creating a black-and-green Shadow Paws; we were creating a piece designed to become part of the customer's existing collection.

The finished piece turned out particularly dark and mischievous. The black base made the green drip stand out strongly, while the painted cat face gave it an almost sinister personality.

*Black, green, and a little glow — created to pair with the customer's Shadow Lock Harness.

The customer was very happy with the result.

During the same production process, we also experimented with the color combination on two Critters. They were not part of the original custom request, but we wanted to see what the new coloration could look like on smaller pieces. They eventually became extra gifts for the customer.

This is one of the things we enjoy about developing custom colors. A new color combination can sometimes inspire ideas beyond the original piece.



When Colors Meet Silicone

Color is one of the most unpredictable parts of custom silicone work.

A digital sketch can give us a very good visual reference, but it cannot perfectly predict how a color will behave once it is physically poured.

Opaque and translucent silicone can create very different results. Glitter and shimmer can change depending on the base color surrounding them. And when two colors are combined into a gradient, their behavior can be particularly difficult to predict.

Light and dark colors may blend beautifully, become slightly cloudy, develop irregular streaks, or separate much more clearly than expected.

This is why we try to discuss these possibilities before production rather than simply promising that the finished piece will look exactly like the screen image.

Our Mint Chocolate Pupcake was a perfect example.


Custom Story #2: Mint Chocolate Pupcake

The customer sent us a hand-drawn concept based on our existing Strawberry Pupcake. They had reimagined it in mint and chocolate, with additional painted details on the base.

*The first hand-drawn concept that started the Mint Chocolate Pupcake custom.

We loved the concept, but there was an obvious technical concern.

Mint is a light color, while chocolate is much darker. When two colors with such different values are blended together, the transition can sometimes look grayish or muddy. It can also develop irregular, string-like patterns rather than the smooth gradient shown in a digital illustration.

We explained this to the customer during our first discussion and shared photographs of other mint-and-chocolate experiments we had made. We wanted them to have a realistic reference for how the colors might behave in silicone.

*Previous mint-and-chocolate pours showed the unpredictable transitions that can occur between light and dark colors.

The customer completely understood the uncertainty. They then provided two different hand-drawn versions for us to consider.

Option #2, which used an even four-color gradient, was actually their least favorite. Option #3 was closer to the look they had in mind, with a much clearer separation between the mint and chocolate tones. They asked whether we could achieve something closer to that version.

*Three different concepts from the customer, giving us several directions to consider before production.

Rather than requiring us to reproduce one specific design, the customer gave us all three options and left room for us to choose the direction that would work best with the actual model and silicone. This gave us some flexibility to balance the visual effect with what was realistically possible to produce.

There was another consideration: the Pupcake model has a knot in the middle of the shaft. Creating a sharp split between two colors in that area could potentially create a structural weakness. We were not comfortable taking that risk simply to reproduce the visual effect shown in Option #3.

After considering both the material behavior and the structure of the model, we recommended using the #1 design as our reference. The customer understood and agreed.

So we began the pour using the first concept as our reference.

And then silicone did something unexpected.

 The mint and chocolate did not blend together in the way we had seen in previous experiments. Instead, they naturally formed a much cleaner separation.

In other words, we followed the first design — but the silicone produced a result that looked surprisingly close to the customer's third concept.

It was not what we had predicted, but fortunately, the final result was still within the customer's expectations. They accepted the difference and were happy with the finished piece.

We also used the color combination to make two Critters and a Mini Pupcake during the same production process. These became additional gifts for the customer.

This project taught us something we have continued to see in custom work: communicating uncertainty does not mean expecting the final result to go wrong. It means leaving room for the material to surprise us.

Sometimes that surprise is a problem.

Sometimes it is exactly what makes the piece special.



When the Original Idea Can't Be Made

Of course, not every idea can be reproduced exactly as imagined.

We think it is important to be honest about this.

If a particular effect is not currently practical or safe to produce, we would rather explain why and look for another direction than promise something we cannot deliver.

One of our Hyena's Oath customs started exactly this way.


Custom Story #3: Fuchsia Eclipse Hyena

The customer initially sent us two leopard-print reference images and asked whether we could create a Hyena's Oath with a similar look.

We understood the appeal immediately, but there was a limitation. At the time, we could not create the leopard pattern on the shaft with hand-painted details, and the highly detailed structure of the base also made the proposed painting impractical.

So we told the customer honestly that we could not reproduce the reference as requested.

Fortunately, the customer was very flexible.

They explained that they were not particularly attached to the leopard pattern itself. What they really wanted was a Hyena's Oath with a pink-to-black gradient and some lighter pink drips, with the pink matching the color of their Shadow Lock Harness.

That was a direction we could work with.

Our designer quickly developed two sketch options, and the customer chose Option #2. They were excited to see the design become real.

The production went smoothly, and the final piece surprised everyone in the studio.

The deep black, vivid fuchsia, and pink drips created a combination that felt both dark and playful. It felt like a perfect match for the original model’s cool, fierce character.

Everyone in the studio agreed that the customer had excellent taste.

The final piece had none of the leopard pattern from the original reference images, but it still captured the mood the customer had been looking for.

That is an important part of custom work for us.

Sometimes the best way to preserve the original idea is not to reproduce every visual detail, but to understand what the customer actually likes about it.

During the same process, we also made two Critters and a Mini Hyena using the new coloration. They became extra gifts for the customer.

The Silicone Has a Say, Too

By now, you may have noticed a pattern.

We can control many parts of a custom project, but not everything.

Silicone flows. Colors interact. Different effects behave differently. Every pour can have small variations.

Drips are a particularly good example.

A sketch can show exactly where we would like a drip to appear, but once the silicone is poured, gravity and flow become part of the process. One drip may travel slightly farther than another. One edge may become wider or thinner. A gradient may transition differently from the reference.

This does not necessarily mean something went wrong.

For hand-poured pieces, these variations are part of the process itself.

A custom silicone piece is not a digital rendering made physical. It is a physical object created through a material that has its own properties and behavior.

That is why two pieces made from the same general color recipe may still have subtle differences.

And sometimes, those differences are exactly what make a one-of-a-kind piece feel one of a kind.

Custom Story #4: Peachy Pupcake

Our fourth custom began with a peach-themed mood board.

*The mood board the customer shared as inspiration for their Peachy Pupcake custom.

The customer wanted a Pupcake inspired by the colors and atmosphere of the reference, and the mood board gave our artist a starting point for understanding the overall direction.

Rather than simply copying one image, our designer spent some time extracting the colors and thinking about how that feeling could be translated into the Pupcake model.

We eventually created two sketch options.

The customer chose Option #2 and then adjusted the colors slightly to bring them even closer to the palette they had in mind. They also asked whether we could incorporate plenty of glitter/shimmer during production.

We followed the final reference and created a soft, warm peach-colored Pupcake.

*The finished Pupcake, created based on the customer’s adjusted color sketch.

The result looked almost edible: gentle peach tones, a soft overall palette, and a warm, dessert-like feeling.

But there was one small surprise.

Because the final colors were opaque and relatively solid, much of the glitter and shimmer became visually buried inside the silicone. The effects were still there, but they were much more subtle than they had appeared in the design concept.

*The glitter is there — you just have to look a little closer.

You could see them when looking closely, but they were not immediately obvious from a distance.

Again, the final piece was not a perfect visual copy of the digital concept.

But the overall feeling was there.

During the same process, we also made two Critters using the peach coloration. We attempted a Mini Pupcake as well, but that particular experiment did not work out.

This time, only the two Critters became part of the customer's extra gift.

Not every experiment succeeds.

That is part of making things by hand, too.

Why We Send Final Photos Before Shipping

Once a custom piece has been poured, cured, finished, and photographed, there is still one important step before it leaves our studio.

We send the customer photos of the actual finished piece for confirmation.

There is a simple reason for this.

The sketch confirms the direction.

The final photos confirm the actual object.

By this point, the customer can see the real color, gradient, drip pattern, painted details, glitter, shimmer, and overall appearance.

Sometimes the result looks almost exactly like the original sketch.

Sometimes there are small differences.

Sometimes the silicone has introduced an unexpected effect.

We want the customer to see those details before the piece begins its journey to its new home.

For us, the final photo is the last checkpoint between the original idea and the finished piece.

 

What We Have Learned From Our First Custom Pieces

These early custom projects were an internal test of what we could do, but they also taught us what custom work means to us.

A successful custom is not about promising that every idea can be reproduced perfectly.

It is about understanding the customer's idea, identifying potential problems, discussing realistic alternatives, and being honest about what the model and material can handle.

Sometimes the answer is:

Yes, we can do that.

Sometimes it is:

We can create something similar, but there are some uncertainties.

And sometimes it is:

We cannot safely create that exact effect right now, but let's see if there is another way to capture the same feeling.

All three answers are part of responsible custom work.

Most importantly, custom work is a collaboration.

It brings together the customer's imagination, the artist's interpretation, the structure of the model, and the unpredictable behavior of silicone.

Sometimes all four line up perfectly.

Sometimes they need a little negotiation.

And sometimes silicone simply surprises everyone.

A Sketch Is Only the Beginning

Looking back at these first four custom projects, none followed exactly the same path.

One began with a very specific color request. One began with a hand-drawn product concept. One began with a reference that ultimately could not be reproduced. One began with a mood board and a feeling.

And every one of them changed slightly along the way.

That is why we do not think of custom work as simply making an existing product in a different color.

It is a process of turning an idea into something physical, while leaving enough room for the material to become part of the creative process.

Not every idea can become a perfect one-to-one reproduction.

A drip may move.

A gradient may change.

A color may look different from the digital sketch.

Glitter may disappear into an opaque base.

An experimental extra piece may fail.

But even with all those uncertainties, we genuinely enjoy the process.

Our customers continue to bring us ideas that we would probably never have thought of ourselves. Some become beautiful colorations. Some teach us what not to do. Some inspire future experiments. And some simply make us stop in the studio and say:

“We have to try this.”

A sketch is where a custom piece begins.

The final silicone piece is where that idea becomes something real — and sometimes, something unexpectedly better.

That is what makes a custom KUMOCOOM piece one of a kind.

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.