Artist Michael T. Rea designed this wooden mecha-suit sculpture and cheekily called it "A Prosthetic Suit for Stephen Hawking w/ Japanese Steel."
Actually, I can totally see Stephen Hawking in a giant robotic suit and pincer claw, walking around and talking about blackholes, singularities, and other wonders of the universe: http://www.mikerea.com/suit.html - via Super Punch
http://www.theonion.com/content/node/39133