Soap & Bath Bomb Making Kit for Kids | 3-in-1 Spa Science Kit | Craft Gifts For Girls | BoysCreate 10 soaps: Mix the wax, coloring, fragrance, and glitter, and pour into the 4 lovely molds to create beautiful soap to use and display. Mix and match colors to your heart's content and create multi colored layered soaps. Create 10 bath bombs: Mix the citric acid, baking soda, Epsom salt, baby oil, coloring, and fragrance and pour into the 5 molds to create fizzy bath bombs (don't forget to bury the surprise charms inside!) to use in your tub.