Forget everything you learned in science class. Now it is possible to create a rainbow indoors and without having to wait on one of those pesky rain showers and prismatic light effects. This rainbow maker from Discovery projects a rainbow with the help of LED lights. It also includes a motion sensor that can detect when a person — preferably grumpy — is in the room and will automatically activate. It will shut itself off once its happiness fuel is depleted (or when no one is in the room).

The Discovery Rainbow In My Room is available for $30 and will be available next month. — Travis Hudson

Discovery Rainbow In My Room, via Coolest-Gadgets