I saw the film Hugo last month. Have you seen it yet? A large portion of the plot revolved around an old automaton shaped like a metal man. When the characters managed to repair the automaton, it drew a picture on its own. While that was cool, it became even cooler when I later found out that this automaton was created without CGI or visual effects. The prop makers actually built an automaton that could draw an entire picture with a pen and ink. Check out this video:
The company who constructed the automata, Dick George Creatives (based in the UK), took 8 months to create 15 different automata. Two could actually create the drawing, while the rest were used for various stunt and action sequences. It’s well worth watching.
You can find also check out some photographs of costumes and the automata while on display.