Peter Mayhew, who not only played the hirsute Chewbacca in the Star Wars franchise, but who also has a pretty keen sense of humor (you'd have to, to be internationally famous yet no one knows what you really look like or sound like), recently posted to his Twitter account a number of old behind-the-scenes photographs he's taken while working on the original trilogy, adding witty captions to them that make them even more one-of-a-kind.