Magical Water Unicorns. This unicorn bath bomb from SES Creative will make the hearts of all unicorn fans race. Simply place the bath bomb in the bathtub or a water bath and wait to see what happens. The bath bomb gradually dissolves in the water, revealing a beautiful unicorn in no time. There are a total of four different unicorns to discover. So, jump into the water and eagerly watch which enchanting unicorn is hiding in the egg.