Kids Bath Bombs show up in some surprising places. One of the most common uses for bath bombs is in a sensory tub with children who are on the autism spectrum, such as autistic children. The goal is to help with temper tantrums and social interactions by giving them something new and interesting to play with, like colorful explosions that float on top of their bath water when they're done playing. They are also often used as a calming soap dish at a playgroup's kitchen sink while mom or dad mixes the next batch of soap batter.