Italian robotics engineer Daniele Benedettelli built this clever robot that works as a pen plotter:

Ladies and gentlemen, here is LEGONARDO, a portrayer robot. It is my fourth generation drawing machine. It is inspired by the work of 18th Century Swiss watch and automata makers Pierre Jacquet-Droz and Henri Maillardet. After reading The Invention of Hugo Cabret, I completely redesigned my portrayer into this shape.The name is a tribute to Leonardo Da Vinci, Italian artist and inventor. The drawings are generated by a custom software I wrote, similar to the one used for my first portrayer robot.