The Phoenix Requiem (which is a wonderful web comic you should all be reading, and if you haven't read Inverloch, which is now complete, you should read that too) has the best. April Fool's joke. Ever. And I TOTALLY did not see it coming.
Get it quick, before it's gone! Although it's much funnier in the whole context of the story... so if you want the full effect, start from Page One.