Kikkerland Design’s Rainbow Maker, available in four designs, brings rainbows right into the home. Just attach the rainbow maker to a window using the suction cup and watch as the Swarovski crystal slowly rotates, and the sunlight from outside is broken into its components and flooded into the room in rainbow form. A sunny day is all you need. Kikkerland’s Perrine Giacomazzo said they’re “selling very well” to a wide target audience from kids to seniors. “It could fit in a child’s room as well as in a living room.”