Shimmer?n Sparkle Rainbow Popping Bath Bombs -DIY Bath Bomb Making Kit. Popping Fizzy Bath Bomb Fun ? Make your own popping fizzy bath bombs and enjoy bath bombs that fizzy and pop as they dissolve in your bath. Rainbow Popping Bath Bombs Kit allows kids to create their own bath bombs by putting the mix into the mold then filling it with popping crystals and adding a top to make the bath bomb. Shimmer?n Sparkle Rainbow Popping Bath Bombs kit is great for ages 8 and up. Rainbow Popping Bath Bomb Kit comes with bath bomb mix, popping crystals, scent bottle, 4 piece mold, drying trays, spoon and instructions. This is the perfect kit for birthday and holiday gift giving. Rainbow Popping Bath Bomb kit makes 1 bath bomb at a time, and it comes with 6 drying trays so you can pre-make all your bath bombs in advance, or make them and give out to friends. Shimmer?n Sparkle Rainbow Popping Bath Bombs comes with bath bomb mix pouches, popping crystals, scent bottle, 4-piece bath bomb bowl mold, 6 drying trays, spoon and instructions.