Curious Craft - Make Your Own Bouncy Balls Kit | Hinkler Books

Curious Craft Cosmic Bouncy Balls includes everything kids need to make at least 5 bouncy balls in a variety of fun shapes. Kids simply add bouncy crystals to one of the three shaped molds, soak in water and voila, they're ready to bounce! The included crystals can make super-cool colored, metallic or glow-in-the-dark bouncy balls or even an LED ba...