This is a nice bit of comics history and, well, style. Flickr user fengschewin has posted this wonderful mosaic made from pictures of the Superman "S" symbols on the chests of his collection of action figures. I’ve got to say, my favorites are B3 and D2; what do you think? Special credit for folks that can name as many of the incarnations represented as possible (GeekDad Jacob, you are NOT allowed to respond!).