Bumper stickers... can't go wrong really. Even HB managed to stick one on his car without messing it up.
"But mongrels, I don't have a car"
No drama. Chuck it on an old laptop. Or do a really bad job of putting it on your bike. Keep the backing on and put it up at work during the summer to remind yourself that football season is on the way and cubical life will once again become (somewhat) bearable.