
John sez, "There's a dude in Japan, who's making a 1:1 scale model of a robot from the Anime 'Votoms' using sheets of iron. The artist will be showing off his works at a studio in Tokyo in May. (Caution: site/blog in Japanese)"
(Thanks, John!)
Update: Marc sez, "Me and my friends did it years before, though ours was made mostly of wood, textured and painted to look like metal."