How to Make a Belly Cast at Home (Step-by-Step Guide for Expecting Mums)

How to Make a Belly Cast at Home

Creating a belly cast is a beautiful way to capture a moment in your pregnancy that you’ll never get back. A belly cast creates a 3D mould of your baby bump, turning it into a keepsake you can display, decorate or treasure for years to come.

Whether you’re doing this as a quiet DIY project with your partner or as a fun baby shower activity, this step-by-step guide will show you exactly how to make a belly cast at home safely and efficiently.

What Is a Belly Cast?

Layering plaster strips makes a belly cast over your baby bump to create a mould. Once it dries, you’re left with a solid cast that captures the shape and size of your bump at that exact stage of pregnancy.

Many mums choose to paint or decorate their belly cast and display it in the nursery as a meaningful pregnancy keepsake.

What You Need to Make a Belly Cast

While it’s possible to buy individual supplies, using a complete kit makes the process much easier and safer, especially during pregnancy.

We recommend using a purpose-made kit like the Pearhead Belly Casting Kit, which includes everything you need.

• Plaster casting strips
• Skin-safe, non-latex lubricant
• Protective drop sheet
• Gloves
• Clear instructions

How to Make a Belly Cast at Home (Step by Step)

1. Prepare your space

Choose a warm, comfortable area and lay down a protective drop sheet to keep surfaces clean.

2. Apply the skin-safe lubricant

Apply the included lubricant generously to your belly and surrounding areas. This prevents the plaster from sticking to your skin and makes removal easy.

3. Prepare the plaster strips

Cut the plaster strips into manageable lengths and dip them into warm water before applying.

4. Apply the plaster strips

Gently place the wet plaster strips over your baby bump, smoothing each strip as you go. Build up several layers to ensure the cast is strong.

5. Let the cast set

Allow the plaster to set for around 15 to 20 minutes. Once firm, carefully lift the cast off your body.

6. Allow to fully dry

Leave the cast to air dry completely for 24 to 48 hours before decorating or sealing.

Decorating Your Belly Cast

Once dry, you can personalise your belly cast by:

• Painting it in neutral or nursery colours
• Adding your baby’s name or due date
• Using ribbons, flowers or decals
• Sealing it for long-term display

Is Belly Casting Safe?

Yes, when done correctly using non-toxic, skin-safe materials. Always choose a kit designed specifically for pregnancy and follow the instructions carefully.

The Pearhead Belly Casting Kit is designed with expecting mums in mind and uses safe materials when used as directed.

Is a Belly Cast a Good Baby Shower Activity?

Absolutely. Belly casting is a popular baby shower activity because it’s interactive, meaningful and creates a lasting memory. Guests can even help apply strips or decorate the cast together.

Where to Buy a Belly Casting Kit in Australia

If you’re looking for a simple, reliable option, you can shop the Pearhead Belly Casting Kit at Peekaboo Baby .

We offer fast Australia-wide shipping and carefully selected pregnancy keepsakes that help you celebrate every stage of your journey.