This set of three classic Origami shaped boats brings a surprise to the bathtub. In warm water, each hull transforms from a dark color to a brighter one. As the water cools, the original color returns.

Our parent testers applauded the shape and stability of the boats, the color-changing fun and the simplicity of the experiment. Some young bathers needed a parent to point out the changing colors, others asked questions on their own, but all enjoyed using the boats to scoop water, fill another boat, and generally splash around.