Skulls, ghosts, pumpkins, haunted houses, tombstones, cauldrons, bats: anything that works as one object on a base.

Can I print it in one colour?

Yes. Pick Bone white for a design made for a single filament, or paint the Painted version.

3D Printing template · free to try

3D Printed Halloween Decorations

Name: Halloween Decoration: before and after
Uploaded: 2026-10-25
Duration: 4 s
Description: Describe a spooky decoration and get it ready to print

Describe a spooky decoration and get it ready to print

Try it free

Free to try · takes about 2–3 min

Describe it in one sentence. About 2–3 min later you download a Halloween decoration as STL or 3MF, ready to print. No 3D skills needed.

Try it

Make Halloween decoration

Describe a spooky decoration and get it ready to print. The prompts and settings are already done for you.

Example 1 of 4

Describe your decoration0/200

Style

UseOptionalDecoration

Quality

~2–3 min · STL & 3MF · one sturdy piece · free to try

Examples

Made with this template

The card in the corner shows what went in.

Skull decoration — A grinning skull with a candle on top

Ghost decoration — A cute ghost holding a pumpkin bucket

Cauldron decoration — A witch's cauldron on three stubby legs

Each example is an actual run of this template at Standard quality, made from a typed idea or a sketch.

How it works

From idea to file in about 2–3 min

Type what you want, then wait while 2 AI steps run. Nothing to set up.

Typed
“A haunted house with a crooked roof”
1
You
You describe it
Or upload a drawing
Image Studio2
AI
AI draws your idea
Image Studio draws your idea as a chunky, playful-spooky decoration with a flat base and nothing thin that could snap.
Image to 3D3
AI
AI builds it in 3D
Image to 3D (Prism 3.1) builds the decoration with Fast textures and Standard mesh quality.
STL 3MF OBJ
4
Yours
You download the file
As STL, 3MF or OBJ. You can use it however you like.

After the download

Print it at home or order it

Open the STL in your slicer, or upload it to a print service if you don't have a printer.

Print it at home

Any FDM or resin printer works. Open the file in your slicer and press print.

No printer? Order it

Upload the STL to an online print service or a local print shop and get it delivered.

Give it as a gift

Birthdays, weddings, a thank-you for a teacher. Nobody else will have the same one.

Paint it

Print in grey and paint it, or print in colour if your printer can.

Behind the scenes

How this template works

Image Studio designs your decoration as one solid piece on a flat base, then Image to 3D builds it, ready for your slicer.

1
Step 1 · Image Studio
Design the decoration
Image Studio draws your idea as a chunky, playful-spooky decoration with a flat base and nothing thin that could snap.
Nano Banana 2.1 (text) or GPT Image 2.5 Flare (sketch)
Open Image Studio
2
Step 2 · Image to 3D
Build the 3D model
Image to 3D (Prism 3.1) builds the decoration with Fast textures and Standard mesh quality.
Prism 3.1 · Fast textures · Standard mesh
Open Image to 3D

Do it yourself for more control

Make a matching set by using the same finish for every piece.
Print in glow-in-the-dark or orange filament for instant colour.
Use Ultra mesh quality for detailed skulls and carvings.

New here

What is 3D AI Studio?

3D AI Studio is a web app that makes 3D models, images and sounds with AI. It runs in your browser, so there is nothing to install.

A template is a saved recipe. It runs a fixed set of AI tools with settings we've already tested, so all you add is a photo or a sentence.

Runs in your browserPhone or computer

Inside this template

Step 1
Image Studio
Draws a picture from a sentence or a sketch.
Step 2
Image to 3D
Turns a single picture into a textured 3D model.

Before you start

What you need

One sentence or a sketch
No prompt skills needed
3D software or skills
Not needed. It all happens in the browser
A 3D printer
Optional. You can order the print online
A free account
Sign up with Google or email

Free to try

PaintedDefault

painted in classic Halloween colours, orange, purple, black and bone white.

Spooky-cute

cute and round with friendly faces, pastel Halloween colours.

Bone white

one uniform bone-white material, no painted colours, ready to print in a single filament.

Your download

The files you get

STLThe standard file for 3D printers.

Open it in a slicer such as Bambu Studio, PrusaSlicer or Cura, then press print.

3MFA newer print file that also keeps size and colours.

Best for Bambu Lab and Prusa printers.

OBJA universal 3D file with its colour texture.

Opens in Blender and almost every 3D app.

Best results

How to describe it

Describe one object: a skull, a ghost, a cauldron, a tombstone.
Add one detail that makes it yours, like a name on a tombstone.
Bone white prints great in a single filament.

Good to know: Pieces are solid; candle holders need a cavity added in your slicer or a modelling tool.

MCP connector

Run this template from Claude, ChatGPT or Cursor

Connect the 3D AI Studio MCP to your AI assistant and paste the brief into the chat. It runs the same steps with the same prompts and settings, shows you the result in the conversation and saves it to your library.

Style

Use

Connect the MCP once in your account settings. It's included in every paid plan.
Copy the brief and swap the example in the first line for your own.
Paste it into a new chat. Your assistant runs every step and shows you each result.

Tools it calls

generate_image_nano_2_1upload_imageedit_image_gptgenerate_prism_3_1convert_modelget_generationshow_generation

What the MCP connector does Setup guides

Chat brief · Halloween Decoration

Use the 3D AI Studio MCP to run the "Halloween Decoration" template (https://www.3daistudio.com/templates/3d-printed-halloween-decorations) for me.

My idea: A haunted house with a crooked roof
Style: Painted
Use: Decoration

Follow these steps in order. The prompts and settings are the template's own, so use them word for word and only put my idea where it says {MY IDEA}.

1. Design the decoration
Call generate_image_nano_2_1 with aspect_ratio "1:1", resolution "1K", output_format "png" and this prompt:
"""
Decoration: {MY IDEA}. A single Halloween decoration designed for 3D printing: one solid object standing on its own flat base, chunky and sturdy with no thin fragile parts, playful-spooky, the entire decoration visible with generous empty margin, centered, three-quarter front view. Isolated on a seamless pure white (#FFFFFF) background, soft even studio lighting, no shadows on the background, no text. Finish: painted in classic Halloween colours, orange, purple, black and bone white.
"""
If I want to start from a sketch or reference image instead, call upload_image so I can hand it over, then call edit_image_gpt with the upload in images, quality "low", output_format "png" and this prompt:
"""
Turn the drawing in the reference image into a Halloween decoration, keeping its design. A single Halloween decoration designed for 3D printing: one solid object standing on its own flat base, chunky and sturdy with no thin fragile parts, playful-spooky, the entire decoration visible with generous empty margin, centered, three-quarter front view. Isolated on a seamless pure white (#FFFFFF) background, soft even studio lighting, no shadows on the background, no text. Finish: painted in classic Halloween colours, orange, purple, black and bone white.
"""

2. Build the 3D model
Call generate_prism_3_1 with the task_id of the image from step 1 in images, texture_model "3.5", texture_quality "fast", geometry_quality "standard", pbr false.

3. Export
Export it for printing: call convert_model on the 3D model with output_format "3mf" (or "stl" if I ask for it), plus max_size and unit "cm" if I gave you a print size.

After each generation call, keep polling get_generation with its task_id until it completes, then show me the result with show_generation before you start the next step.

Or automate it with the API

The same tools are available through the 3D AI Studio API. Call them from your own code to make hundreds at once, build them into your app or run them in your pipeline.

API docs Get an API key

Halloween Decoration: questions & answers

3D AI Studio is a web app that makes 3D models, images and sounds with AI. It runs in your browser, so there is nothing to install. A template is a saved recipe. It runs a fixed set of AI tools with settings we've already tested, so all you add is a photo or a sentence.