Smooth Release
Designed for easy release without sticking or cracking, leaving your bath bomb with a clean, smooth finish every time.
“Every batch turned out perfect. They look like something you'd buy in a fancy boutique.”
— Klaudia W., Verified Buyer · 2" Cube 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 →
Designed for easy release without sticking or cracking, leaving your bath bomb with a clean, smooth finish every time.
Choose the same mold design in different sizes to suit various products, occasions, and bath bomb-making needs.
Covered against manufacturing defects for two years when used normally and cared for according to our instructions.
Rinse with cold water, allow it to dry completely, and store it in a cool, dry place between uses.
Turn bath time into a celestial experience with our Sphere Stars Bath Bomb Mold! This high-quality 3D-printed mold creates perfectly round bath bombs adorned with star-shaped details, making them look like tiny galaxies or magical night skies. Whether you’re crafting for space lovers, holiday collections, or simply adding a twinkling touch to your bath bomb lineup, this mold ensures your creations shine bright every time!
Available Sizes: 1.5" | 2" | 2.5" | 3" | 3.5" | 4" | 4.5"
Parts Included:
How to Use:
Care Instructions:
This mold is perfect for creating bath bombs that capture the wonder of the night sky, with starry details that add a dreamy and magical touch. Ideal for space-themed collections, cosmic-inspired gifts, or anyone who loves a little sparkle, the Sphere Stars Bath Bomb Mold will take your bath bomb creations to another galaxy. Make every bath an out-of-this-world experience!
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.
Not sure which to pick? Here's what each size looks like — and what people use it for.
Great for party bags, grab bags, and gift toppers.
Perfect for gift sets, favors, and bundles.
The classic size. One per bath. Works for everyone.
Feels generous, looks great, a crowd favorite for gifting.
Great for selling on Etsy, looks premium in packaging.
Big enough to wrap and give on its own, a real treat.
A showstopper. One bomb for a long, deep soak.
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.
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.
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.
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.
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.