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Blog / Project

Custom Cake Toppers with AI: Sizes and Real Tips

Jul 9, 2026 · 6 min read

Cake toppers are that magical detail that turns an ordinary cake into the centerpiece of any party. But getting a custom topper has always been expensive or complicated. Until now.

With KingsCutter you can design your own cake topper in seconds, download it as STL, and print it at home. No 3D design skills or expensive professionals needed.

What makes a custom cake topper special?

A topper with the birthday person's name, age, company logo, or a meaningful silhouette elevates any cake. Weddings, baptisms, kids' birthdays, bachelor parties — every occasion deserves that unique touch.

How to create your cake topper on KingsCutter

Step 1 — Upload your image or text

On KingsCutter you can:

  • Upload a logo or drawing to convert into a silhouette
  • Type text and choose a font
  • Use an image from the community gallery

Step 2 — Choose Cake Topper as your product

Among 16 product types on KingsCutter, select Cake Topper. Adjust thickness, height, and size. The 3D viewer shows results in real time.

Step 3 — Download the STL

One click and you have your STL file ready to print. First download is free, no credit card needed.

Step 4 — Print or order

Have a 3D printer? Use PLA, PETG, or resin. The file comes pre-oriented for the print bed. Don't have a printer? Order from one of our printing partners.

Ideas for your cake toppers

  • Birthdays: name + age, with balloons or candles
  • Weddings: interlocked initials, date
  • Baby Showers: rattle, teddy bear, baby name
  • Corporate: company logo for corporate events
  • Christmas: tree, star, snowflake
  • Graduation: mortarboard, year, graduate's name

Tips for a professional result

Thickness: For standing cake toppers, use at least 3-4 mm thickness so they stay firm. For flat toppers (lying on the frosting), 2 mm is enough.

Height: Toppers for 3-tier cakes can go up to 20 cm without issues. The design auto-adjusts proportions.

Material: PETG or resin gives the best finish. If using PLA, make sure it's food-grade if touching the cake directly.

Pick: You can add a hole at the base of the design to insert a wooden or plastic pick. On KingsCutter this is configured with one click.

Why design your cake topper on KingsCutter?

Because it's the fastest way to go from an idea to a physical object. No software, no technical skills, no waiting. The ManifoldCAD engine generates the 3D model directly in your browser (WebAssembly) — your design never leaves your computer.

Ready to create

Go to kingscutter.com, upload your image or text, choose Cake Topper, and download your free STL. In under a minute you have the perfect topper for your next celebration.

How big and in what material should a custom cake topper be?

A custom cake topper should measure between 7 and 20 cm depending on the cake size, and it should be printed in food-grade PETG if it will touch the dessert. That combination gives you a topper that stands firm, does not bend over the frosting and can be cleaned without falling apart. With AI the design is generated from an image or a text in seconds, and the file downloads as an STL ready to 3D print.

You do not need modeling skills: upload the image, choose Cake Topper as the product type and adjust the size in the 3D viewer. The most requested designs are name plus age, interlocked initials, pet silhouettes and company logos for events. If the topper is pushed into the cake, make sure the base has enough body to hold the design; if it rests on the surface, a thinner piece is enough.

Data and measurements

Figures you can verify before designing your topper:

ItemValueSource
Physical piece materialFood-grade PETG, safe for food contactstore.kingscutter.com product sheet
Available sizes7, 8, 9, 10, 13, 15, 17 and 20 cmkingscutter.com catalog
HandleIncluded with every physical cutterstore.kingscutter.com
WashingHand wash; dishwashers degrade PETGWash tests in our workshop
Product typesCutter, stamp, stencil, cake topper, silicone mold, filled cookie kit, imprint cutter, sandwich cutter, texture roller, word mold, ejector and brigadeiro stampkingscutter.com

According to our measurement in the workshop, the 7 to 20 cm range spans everything from cupcake toppers to large pieces for multi-tier cakes, and the jump between 10 and 13 cm is what changes the topper presence on the table the most. According to the wash tests we ran with PETG pieces, hand washing preserved the relief and the color, while a dishwasher degraded the surface. For a topper you reuse every year, that matters.

From design to table

The kingscutter.com library holds hundreds of designs across animals, names, sports and characters, and the first download is free and does not ask for a card. You can start from your own idea at design on kingscutter.com, and if the same drawing also works as a cutter, how to turn a photo into a 3D cutter explains the full workflow.

When you need the topper already printed and ready to place, the physical store ships to several countries. Subscription plans exist for people who design often, and the first download can be done free with no card just to test the result.

A cake is remembered by its centerpiece, and that centerpiece can come from your own idea in under a minute. That is what kingscutter.com does: it turns an image into the piece everyone looks at on the table.

Sources and standards

The technical data in this guide is backed by verifiable official sources:

  • NIST — additive manufacturing standards
  • FDA — food contact material safety

Ready-to-print designs

Bolo de Casamento — Wedding
Bolo de Casamento
Bolo Nupcial — Wedding
Bolo Nupcial
Coração Romântico — Wedding
Coração Romântico
Pareja dentro de corazón — Holidays
Pareja dentro de corazón
Ursinho — Baby
Ursinho
Browse the full library →

Preguntas frecuentes

Can I make a cake topper with a name and age?

Yes. On kingscutter.com you can type the text, choose the font and preview the result in the 3D viewer before downloading the STL.

Which material should the cake topper be printed in?

Food-grade PETG if the topper will touch the cake. It is the material of every physical piece sold at store.kingscutter.com.

Which cake topper size do I need?

Available sizes are 7, 8, 9, 10, 13, 15, 17 and 20 cm. A small cake calls for 7 to 10 cm, while a multi-tier cake handles 13 to 20 cm.

Can the cake topper be washed?

By hand, with warm water and mild soap. Dishwashers degrade PETG and are not recommended.

Can I order the cake topper already printed?

Yes. Physical printing can be ordered at store.kingscutter.com with shipping to several countries, and the first digital download is free with no card.

Updated: Sep 15, 2026 · By KingsCutter

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