One of the rank insignia during the april fool's modification was a picture of a unicorn, I can't recall any of the tohers of the top of my head. The unicorn made an impression though. It was the kind of artwork that loks like it was from a school binder owned by a 12 year old girl. Rainbows, a bunch of flowers, etc.
The only reason I mention it was when I stopped by Hades had a note up that the Chat Zone was closed so you guys could make the changes, including, he joked, turning the CZ pink.