The Prism
From WikiBrite: The Rainbow Brite WIki
Magical wrist weapon used by Krys. A gift from Orin, the Sprite wise man. The Prism blasts a ray which then transform to what the wearer is in most need of (Heat ray, ice ray, even transforming a beast into fish). It is the cousin of the Color Belt, one needs the other to work."It's magic has endured since the most ancient times. He'll need the power of your rainbow to make it work. But with your help, he'll be the warrior he's always dreamed of being. "
"How does it work? Just as you saw. All you have to do is need it. It will do it's job as long as your purpose is true....and the rainbow is near." - Orin "Rainbow Brite and the Star Stealer"