Sometimes, though, something shows up I have to play with... the latest thing is Blizzard-approved custom T-shirts that show your guild's name, tabard, and your character name along with symbols indicating faction, race, and class. Just playing around with the generator, I came up with this.... no, it's not my guild's name (nor my character), but maybe it should be. :D
Considering the plethora of bunny lovers I know, it would be fun.