I made some USB powered Christmas Lights for my Computer. I couldn't find any at the stores to buy. Very easy to make. All you need is an old extra USB cord, a hot glue gun, wire strippers, and some battery powered lights. Your USB cord has 4 wires but you only use 2. Clip the green and white short as they are not used. The red is + and the Black is - Just strip your wires and twist them up. Then cover them with the hot-glue to insulate the bare wires and to keep them together. You can also solder the wires together before you glue them down, I did.