◆ Cookie dough

Ocean sea creature cookie cutter set with stamps

Six sea creature cookie cutters with stamps: whale, fish, octopus, starfish, sea turtle and a seashell.

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3D render of six 3D-printed ocean cookie cutters with their stamps and a golden stamped cookie in front of each: whale, fish, octopus, starfish, sea turtle and seashell
Cookie dough ~116 g Pro early access

Six sea creatures for an under-the-sea party: a whale with its tail up, a fish with scales and fins, an octopus with five chunky curling arms, a starfish, a sea turtle with its shell pattern and a scallop shell. Every cutter has a stamp that presses the eyes, the scales, the dots or the shell ribs into the cookie. Good for under-the-sea and mermaid birthdays, beach weddings, summer parties, baby showers and aquarium days.

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All six were made with our free cookie cutter generator, not modelled by hand: we drew each shape with its stamp's lines inside it and uploaded it with Generate stamp switched on. The zip holds exactly what the tool gives you, one STL per shape with the cutter (a 0.8 mm blade, 14 mm tall, with a 4 mm rim to press on) and its stamp side by side, plus each drawing as an SVG. The cookies come out 90 x 60 mm (whale), 85 x 56 mm (fish), 89 x 90 mm (octopus), 85 x 81 mm (starfish), 78 x 90 mm (sea turtle) and 81 x 85 mm (seashell).

For a beach look, dip the bottom edge of each iced cookie in crushed digestive biscuits or light brown sugar as sand, and give the shell and starfish a brush of edible pearl dust.

The cutters and stamps print flat with no supports, in PLA or PETG. A cutter touches dough for a minute, but a 3D print has fine layer grooves where crumbs can sit: pick a food-contact filament if you can, wash each part by hand in warm soapy water before and after use, never in a dishwasher, and flour the blade and stamp before every press.

Shown as a 3D render of the six printed cutters, their stamps and a stamped cookie from each, not a photo.

Ocean sea creature cookie cutter set with stamps at a glance: every printed part with its size, print time, filament, print settings and the three steps to use it

What you need

4
  • Rolled cookie dough that holds its shape: sugar cookie, shortbread or gingerbread, with little or no baking powder
  • A rolling pin, and two 5 to 6 mm guides for an even thickness
  • Flour or cornflour for dusting the cutters and the stamps, and baking paper
  • About 116 g of PLA or PETG for the whole set, ideally a food-contact filament

How to use it

7

  1. Print each file as exported: the cutter rim flat on the bed with the blade pointing up, and its stamp beside it, no supports.

  2. Wash every part in warm soapy water before the first use.

  3. Roll the chilled dough 5 to 6 mm thick between two sheets of baking paper.

  4. Dip a cutter's blade in flour, press straight down with your palm on the rim, and lift.

  5. Dust its stamp, press it into each cookie that cutter cut, about 2 mm deep, and lift it straight up.

  6. Chill the stamped cookies for ten minutes, then bake.

  7. Wash the parts by hand straight after use and let them dry. PLA softens in a dishwasher.

Print details

12 h 25 minPrint time
~116 gFilament
12Printed parts
All print details
Print details
Works withCookie dough
Printed parts12
Print bed needed204 x 98 mm, 14 mm tall
Filament~116 g
Layer height0.2 mm
Infill15%
SupportsNot needed
DownloadZIP: six cutters with their stamps (6 STL) + print and food-contact sheet + drawings (SVG) + README
Added2026-09-27

Pro early access until October 27, 2026, then free with any account.

Like it or post your print on Thingiverse

Make your own cookie cutter →

Made with the free Cookie cutter generator. Upload your own shape and get the same kind of tool built from it, in your browser.

Free for personal use. Selling the pieces you cast needs a commercial licence (Pro or Founder); passing on the file itself is not permitted on any plan. Full terms.

New to casting? Read the cutter guide.

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Questions about this design

Which sea creatures are in the ocean cookie cutter set?

Six, each with a stamp: a whale, a fish, an octopus, a starfish, a sea turtle and a scallop shell. The stamps press in the whale's mouth and grooves, the fish scales, the octopus face, the starfish dots, the turtle shell and the shell ribs.

Do the octopus arms from the ocean cookie cutter set tear off?

No: the octopus has five thick arms rather than eight thin ones, each well over a centimetre wide on the cookie, with wide gaps between them. Chill the cut cookies before baking and lift them with a spatula under the head and arms together.

Can I use the ocean cookie cutter set for a mermaid party?

Yes, the shell and the starfish are the mermaid pieces, and the fish, turtle and whale fill out the sea. Ice them in teal, lilac and coral with a little edible glitter for a party table that shimmers.

Can I make the cutters in the ocean cookie cutter set bigger or smaller?

Yes. Every drawing is in the zip as an SVG: upload one to the free cookie cutter generator, switch on Generate stamp and move the Cutter size slider (these are 85 to 90 mm). The stamp scales with its cutter, so its lines still fit the cookie.

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