First the US Postal Service came out with postage stamps honoring scientists like physicist Richard Feynman and mathematician John von Neumann. Then, in this age of "intelligent design" hucksterism, the spoofers got ahold of 'em. The new version features the likes of Rick Santorum, George W. Bush, and William Jennings Bryan.
Earlier: Science trading cards! And, via WiFi Art, Sci-Philately.