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DIY Bath Bombs for Kids with a Toy Surprise

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Learn how to make bath bombs for kids with a toy surprise in this easy DIY beauty recipe. 

Two purple bath bombs on a tan towel with a toy dinosaur standing on one of them.

One of my kids’ favorite types of bath bombs have a toy surprise in them. Each surprise bath bomb looks like an ordinary bath bomb, but when they dissolve in the bath, your child is left with a cute little little toy.

We used toy dinosaurs in our surprise bath bombs for kids, but you can use any small toy you want. Some other ideas are rings, toy cars, army figurines, toy frogs or small calls.

You don’t have to use essential oils in your kids bath bombs, but we like to use ones that make our skin feel nice. Our favorite kid-friendly essential oil blends right now are Baby Skin and Peace and Quiet.

You’ll get 6-8 bath bombs from this recipe using standard bath bomb molds. However, you can make them in just about anything you’d like.

Close up of DIY bath bomb for kids with a toy dinosaur

DIY Toy Surprise Bath Bombs for Kids

Follow this easy step by step tutorial to learn how to make bath bombs for kids.
3.88 from 8 votes
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Prep Time: 5 minutes
Active Time: 20 minutes
Total Time: 25 minutes
Makes: 6 Bath Bombs

Supplies

  • 2 cups baking soda
  • 1 cup Epsom Salts
  • 1 cup citric acid
  • Essential oils
  • Mica powder
  • Witch hazel - in a spray bottle
  • Olive oil spray
  • Toy dinosaurs

Tools

  • Mixing bowls
  • Measuring cups
  • Fork
  • Bath bomb molds

Instructions

  • In a large mixing bowl, mix the baking soda, epsom salts and citric acid until well combined.
    Dry ingredients for kids bath bombs in a metal mixing bowl
  • If you want to make more than one color of bath bombs, divide the mixture between 2 (or more) mixing bowls. I divided mine into two. Add about 10 drops of essential oils to each bowl (when using 2 bowls). Using a fork to blend it into your mixture. Add about 1 teaspoon of mica powder to each bowl (if using 2 bowls). Stir until color is well combined. The color will darken more after you add the witch hazel, so don't go overboard or you'll be scrubbing the mica from your tub.
    Ingredients being mixed together to make pink bath bombs in a yellow mixing bowl
  • Spray the mixture gently with witch hazel, then mix with your hands to incorporate. Keep spraying and mixing until you get to a point where it's starting to clump, but is still dry. You don't want it to get sticky. It should crumble like kinetic sand. If it's too wet, it will expand and make it really hard to get it to set up properly.
    Pink bath bomb mixture in a bowl pressed together to test its readiness to mold
  • Spray your bath bomb molds with olive oil spray. Then press your bath bomb mixture down into your bath bomb mold, leaving space for the hidden surprise.
    Bath bomb mixture pressed into mold leaving enough room for a toy surprise
  • Add the toy, then pack in more of the bath bomb mixture.
    Plastic toy dinosaur set into the bath bomb mold
  • Fill the other side of the mold with the mixture, then spray both halves lightly with witch hazel. Press the halves together, making sure the mixture is pressed well together. Allow the bath bombs to sit for about an hour, then carefully remove them from the molds and set them out to cure. Let them cure overnight or for 24 hours until they're completely hardened.
    Three purple bath bombs for kids set out on a towel curing

How to Use Bath Bombs for Kids

  • Pop one in the bath for bath time. They will start fizzing right away.
    Kids bath bomb fizzing in the bath tub
  • Your kids will love the surprise they find!
    Purple toy dinosaur in a kid's hand that came from a toy surprise bath bomb

Free DIY Beauty Products Guide

How to choose the right essential oils for your homemade beauty products.

Open mason jar of pink peppermint body butter on pink and white background.

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