6 Best Bath Bomb Molds

Watching your bathtub explode with colorful swirls and bubbly bubbles is a relaxing ritual enjoyed by many, but if you want to up your bath bomb game with custom creations, you need to start by collecting the best bath bomb molds. The sturdiest options are made from food-grade metal and are easy to take apart so your bomb remains intact while being deployed. If you're not looking for an orbital shape, baking sheets can provide an effective solution, but be aware that silicone baking sheets are collapsible and therefore have less structure.

  • Metal: High-quality aluminum or stainless steel molds are the most durable, easiest to clean, and best for creating perfectly round shapes that stay that way. Their reliability makes them suitable not only for beginners but also for anyone who enjoys DIY activities.
  • Plastic: These can be an attractive option because you get more for less, but they are less sturdy and may cost you more in the long run as you may need to replace them. That said, if you're committed to the hobby and plan to give away your bath bubbler, a clear plastic casing would make a great display case and also hold the shape of your piece while drying.
  • Silicone: If you want to go beyond the traditional ball shape, you'll find that silicone molds offer a variety of options. Keep in mind that since silicone is malleable, it requires more patience when pressing the ingredients in, especially when you consider that the tighter the package, the less likely the bomb will collapse upon release.

In the end, it comes down to personal preference when weighing the advantages of two-part containers versus trays. Stuffing the sides and pressing them neatly together so they stick together takes practice, so newbies may want to start with the latter. In fact, many DIY experts and bloggers have shared their own success stories using muffin tins.

The best bath bomb molds can really make or break your project, but sourcing the right ingredients is also important. Almost all recipes are based on a mixture of baking soda and citric acid, so be sure to stock up on both before you start.

To get you started on your own DIY projects, below you’ll find a list of the best stencils from Amazon!

1. A set of sturdy stainless steel molds for every size you need

Healthy Home Helper Stainless Steel Bath Bomb Molds (5-Pack)

Stainless steel bath bomb molds like the one featured here are virtually indestructible and won't dent or warp no matter how many times you drop them. They are also rust-resistant and food and dishwasher safe. More than 700 Amazon fans have reviewed the set, earning it an average rating of 4.7 stars, with one reviewer noting that one of the standout features is the raised ring in the middle, which greatly aids in properly aligning the two halves. With your purchase, you'll get five sizes (1.37-inch, 1.77-inch, 2.56-inch, 2.96-inch, and jumbo 3.4-inch), giving you plenty of options to choose from.

DIY Success Story: “My bath bombs pop up with no issues and are super easy to clean. I’ve also dropped them on the kitchen floor more than once so I can attest to their durability as well. I’m so happy I bought these first and then Burn a bunch of inferior ones."

2. Three molds, equipped with more than a dozen colorful dyes

DecorRom Bath Bomb Mold Set with Soap Dye (22 Pieces)

More than 1,300 shoppers gave this kit a five-star rating because it's so comprehensive. In addition to four different-sized spherical food-grade aluminum molds (two 2.56 inches, one 2.17 inches, and one 1.77 inches), you'll also get a handy instruction booklet with recipes, as well as 12 skin-safe and food-grade dyes . The kit also comes with 100 shrink wrap bags if you want to make bath bombs and store them safely for later relaxation. While you'll still need to provide other ingredients, such as baking soda, citric acid, and essential oils (if you're into perfume), you'll have a head start on creating your own unique masterpiece.

DIY Success Story: "'I'm so happy with this set. It works great and the colors are fun. I was worried I would use these colors in every batch, but they are surprisingly vibrant. I only had to use a few drops. "

3. This waffle tray is suitable for large batch production

Wilton Perfect Results Nonstick Waffle Pan

If you prefer to use a traditional waffle pan, this steel waffle pan from Wilton will help you make multiple bath accessories at once (bonus: No need to try to combine two items like other clamshell models on this list Press together)). Each of this model's 12 cavities are 2 inches in diameter, and the pans feature a nonstick coating to make your sizzlers slide out easier. If you prefer, you can of course use a silicone muffin pan in much the same way.

DIY Success Story: "These are great non-stick pans, super easy to clean, and great size. Great product! Highly recommended."

4. A set of fun ocean-themed stencils

Kyerivs Metal Bath Bomb Mold Set (14 Pieces)

This set of metal stencils will add a little fun and personality to your bath bombs. Made from food-grade aluminum, you get a total of seven molds, including a starfish, a heart, two different shells, and three spheres (one of each diameter: 1.8 inches, 2.1 inches, and 2.5 inches). You'll also get 100 shrink wrap bags for securely packaging your creations and a mini heat sealer (requires two AA batteries, but not included).

DIY Success Story: "Great little kit. The mold is lightweight but sturdy. All the halves fit perfectly. Love the small packaging supplies too. It makes things look more polished and professional."

5. A pair of unique 3D designed silicone molds

YGEOMER Silicone Flower Molds (2-Pack)

If you want to make something more complex, these silicone molds come with 12 textured flower bombs in six designs, all in one go. Each cavity is 1.38 inches in diameter, and users have also mentioned using the food-grade trays to create beautiful candles, soaps, and baked goods, so if you're a crafter, they're a great tool to add to your arsenal.

DIY Success Story: "My daughter and I used these to make bath bombs and they turned out great! They are strong enough to pack securely but flexible enough to peel without sticking to the finished product. The detail is outstanding!"

6. This set of affordable plastic molds

Ian's Choice Bath Bomb Molds (Pack of 15)

The two halves of these 1.75-inch diameter plastic molds snap together and stay closed so they can be used to create and store your creations, and of course double as great gift wrapping if you don't like shrink wrap or whatever you have on hand . Each sphere in this 15-pack is made from reusable, BPA-free plastic. Note that since plastic is not very durable, one commenter offered this helpful tip: When packaging the mold, hold it in your hands rather than placing it on a table to avoid any dents.

Note: The brand also offers plastic cake-shaped molds and heart-shaped molds.

DIY Success Story: "Me, I really enjoy using these molds. These are sturdy plastic. Very easy to smash together. I'm glad they are clear. That's the main reason I bought these molds. I make them for brides These molds turned out great for my shower bombs and my kids even had fun making them. ”

Also Consider: This Easy-to-Use Stamp for Creating Elegant Floral Patterns

HistenOne Bath Bomb Press (7 Count)

Although it was originally designed to make batches of mooncakes, this press has found a loyal following among bath bomb DIY enthusiasts. The press comes with six stamps, each with its own intricate design, making each bath bomb a work of art. Although it's plastic, it's food-grade, BPA-free, and a very effective tool for beginners. The press can both pack the bomb tightly and pop it out easily without destroying the shape. To use, you fill the press, turn it over and press to release the freshly pressed bath bombs, preferably on a cookie sheet.

DIY Success Story: "Love this! We made bath bombs for a school project. We tested a lot of different recipes and a lot of different molds (including spheres) and the bomb we made with this press surpassed all the other molds. It So easy to use, trust me because I'm terrible at crafting...wrap tightly, press on a parchment lined baking sheet, let dry for a day...everyone who sees them thinks we bought them them. in a store."

Also Consider: This Essential Oil Blends Starter Set

O'liner Premium Essential Oil Blends Set (6 Pieces)

If unscented bath bombs don't interest you, you may want to prepare some essential oils. This set, in particular, takes the guesswork out of DIY aromatherapy because the vials are pre-mixed for you—there are six blends, each labeled to help you choose the right one to boost your mood (blends include sleep, anxiety, breathing, energy), balance, and when you need a little boost). These popular oils have received more than 3,500 five-star reviews, with customers delighted with their long-lasting scent.

DIY Success Story: "My second order of this product and it's great. A variety of scents for every occasion to relax, have a good night's sleep, and feel good. I use them with my new diffuser, in Add a few drops to the bath."