This robot's main part is cardboard. The back is cardboard, the front a, and so is the bottom holding it up. It can moves its head and move its arms. To make this robot, you use a cardboard shoe box, some hot glue, servos, and an arduino. The arms can even be constructed out of cardboard! Please vote in the name of cardboard robots!
Step 1: Cardboard
Here's the cardboard I used.