A while back I came up with a way for us to display a U.S Map marking all the states we'd cached in so far.  I'd never seen any other cachers with an image like this.  I got the idea while driving behind one of those motor homes with stickers covering the back of various states visited.  Evidently others thought this was a great idea and ran with it.  Now there's a site that generates it for you and gives you the code to place in your profile.  We don't use the "mass produced" version of course because, well, we were the "original" and we like ours better lol.

(click the map for full-size image)