When fans build replicas of Star Wars costumes, they usually choose stormtroopers, Jedi, or maybe Darth Vader. Not many of them construct moving and functioning C-3PO suits, but Gordon Tarpley does. He’s a cosplayer and performer, and he talked with Norman Chan at Tested about his build process. You can keep up with Gordon’s work — he builds more things than just Threepio costumes — at Facebook.
Get a closer look at the red arm in this video from Tarpley: