The recent "doomsday style" trend -- with added LED lights.

The transformation cost is very low. Materials: small LED lights, wires, switches, rubber tubes, soldering iron, and batteries. The method is very simple, it's the series circuit we learned in middle school. Solder these components together with a soldering iron and install them in a self-made head sculpture, which can be controlled by a small switch. You'll understand once you see TP. Share the joy of making!~~~~~~