Who's Pogo?

John Wayne Gacy, convicted and executed killer of 33 boys - and source of Madonna Wayne's surname - spent the more innocent part of his spare time entertaining at kids' parties in a self-designed clown suit and make-up, under the name Pogo the Clown. MWG has adopted the nickname along with the name, and is frequently addressed as Pogo. (Side note: Daisy, though he quite reasonably did not choose to be called by David Berkowitz' nom-de-gun "Mr. Monster," was in the Spooky Kids days sometimes associated with Berkowitz's self-designed monogram - a large X quartered with male and female symbols, an S and a cross.)