This pico projector is perfect for kids, and not at all the puzzle it seems.
About an inch and a half on a side, the Storytime projector is very portable
At CES 2013, TI demonstrated the Rubik's Cube-style pico projector that works with DLP Pico technology.
Made by Innoio for Korea's SK Telecom, the colorful cube can project kids' shows or movies on a nearby wall or on the ceiling.