Smooth Release
Designed for easy release without sticking or cracking, leaving your bath bomb with a clean, smooth finish every time.
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Best Seller
Back to School Bath Bomb Mold
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$13.29
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Good for: Party bags and gift toppers
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2-Year Warranty Against Defects
On every mold
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Ships in 1–3 Business Days
Tracked worldwide
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Durable Materials
Built for batch after batch
★★★★★
“Every batch turned out perfect. They look like something you'd buy in a fancy boutique.”
— Klaudia W., Verified Buyer · 2" Cube Mold
Why Makers Love This Mold
Every batch comes out crisp, clean, and ready to gift — whether you're making two or two hundred. It's the kind of result that makes people ask “did you really make this yourself?” New to bath bombs? Read our beginner's guide →
Multiple Sizes
Choose the same mold design in different sizes to suit various products, occasions, and bath bomb-making needs.
2-Year Warranty
Covered against manufacturing defects for two years when used normally and cared for according to our instructions.
Easy to Clean
Rinse with cold water, allow it to dry completely, and store it in a cool, dry place between uses.
Description
Start the Year with a Splash, Back to School 3D Bath Bomb Mold
Kick off the school season with some fizzy fun using our Back to School 3D Bath Bomb Mold! With bold lettering, pencils, and a cheerful banner, this mold turns every bath bomb into a celebration. Perfect for classroom gifts, teacher appreciation, or back-to-school themed collections, this design earns top marks for creativity and charm.
Available Sizes: 1.5" | 2" | 2.5" | 3" | 3.5" | 4" | 4.5"
Mold Type:
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Three-piece 3D Mold (Top, Bottom, and Sleeve)
How to Use:
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Place the bottom piece on a flat surface.
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Slide the sleeve over the base to form the mold chamber.
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Pack the bath bomb mix firmly, then align and press it with the top mold.
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Remove the top, slide off the sleeve, and gently release the bath bomb from the base.
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Let dry for 24 hours before painting or packaging.
Care Instructions:
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Rinse with cold water only, never use hot water or a dishwasher.
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Store in a cool, dry place.
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Avoid soaking to maintain fine detail and structure.
Why You'll Love It:
A perfect fit for fall promotions or educational gift sets, the Back to School 3D Bath Bomb Mold helps your products stand out. Whether you’re selling to parents, teachers, or kids, this mold makes bath time feel like recess.
How to use
- Place the bottom piece of the mold on a flat surface.
- Attach the bath bomb cylinder around the bottom piece to form a stable frame.
- Fill the mold with your bath bomb mixture, ensuring it’s even but not too packed.
- Insert the top piece/plunger into the cylinder and press firmly to create the detailed Charizard design.
- Gently lift the top piece, slide off the cylinder, and remove the bottom base.
- Allow the bath bombs to dry for 24 hours before using or packaging
Shipping & Warranty
Free Standard FedEx Shipping (orders over $100): 7–12 business days
FedEx Express Shipping: 1–2 business days (available at checkout)
All shipments include tracking.
All molds include a 2-year warranty with normal use.
Care instructions
- Hand wash in cold water after each use — no hot water
- Dry thoroughly before storing
- Do not soak
- Store away from direct sunlight
- Not dishwasher safe — hand wash only
- Store in a cool, dry place
Find your size
Which Size Is Right For You?
Not sure which to pick? Here's what each size looks like — and what people use it for.
1”
About thumb-sized
Great for party bags, grab bags, and gift toppers.
$11.55
1.5”
About golf ball-sized
Perfect for gift sets, favors, and bundles.
$12.90
Most popular
2”
About ping-pong ball-sized
The classic size. One per bath. Works for everyone.
$14.30
2.5”
A bit bigger than a golf ball
Feels generous, looks great, a crowd favorite for gifting.
$16.80
3”
About apple-sized
Great for selling on Etsy, looks premium in packaging.
$19.50
3.5”
A little smaller than a tennis ball
Big enough to wrap and give on its own, a real treat.
$22.80
4”
About softball-sized
A showstopper. One bomb for a long, deep soak.
$26.40
Build your collection
The Starter Set — 3 Shapes, Endless Variety
More Than Just a Bath Bomb
Common questions
Questions About the Cube Mold
What size bath bomb mold should I buy?
The 2" is our most popular size — it makes a bath bomb that's perfect for a single soak and fits nicely in packaging. If you're making party favors or gift bag fillers, go smaller (1" or 1.5"). If you want something that feels luxurious to gift or sell, try the 3" or 3.5". Oursize guideshows exactly what each size looks like.
Will this mold work with my bath bomb recipe?
Yes — this mold works with all standard bath bomb recipes including citric acid and baking soda bases. The smooth interior walls are designed for clean release regardless of your exact formula. If your mixture is wetter than usual, let the bath bombs set for a few extra minutes before removing.
How long does the mold last?
With normal care, these molds last for hundreds of batches. Every mold comes with a 2-year warranty — if it develops a defect in materials or workmanship under normal use, we'll replace it. Just contact us.
Can I use this mold to sell bath bombs?
Absolutely — many of our customers run Etsy stores, sell at markets, and supply local boutiques using these molds. The 3" and 3.5" sizes are especially popular for retail-ready bath bombs. If you need a custom shape or logo pressed into your bath bombs, check out ourcustom mold service.
How do I clean and store the mold?
Rinse with cold water after each use and dry thoroughly before storing. Avoid hot water. Do not soak or put it in the dishwasher. Store in a cool, dry place away from direct sunlight.