Double Crystal RainbowMakerDouble the rainbows! Our suction cup Double Crystal RainbowMaker will stick to your window and work it's rainbow magic. The cleverly designed solar panel will rotate the two crystals and refract light in all directions. Our rainbow makers, all have clear housings that allow you to watch the inner working gears rotate in perfect synchronicity by the power of the sun; they have to be seen to be believed. Collect them all.