4M STEAM Magnetic Unicorn from STEAM Powered Kids. A Unicorn That Comes Alive when it is close to the rainbow. Magic or magnet? The Unicorn dances and spins when it gets close to the rainbow. Fun to Play! Place the rainbow magnet close to the unicorn and watch it magically start to spin. Learn how magnets work. The unicorn has positive and negative magnets inside its body to either repel or attract the rainbow magnet. The adorable unicorn and colorful rainbow are so much fun and a great way to interest kids in learning about magnetism and how way two poles work to repel and attract.