candidate: Guests of honor included Literary GoH Margaret Weis and Don Perrin , Artist GoH Ray Van Tilburg , Mad Scientist GoH Bruce Schneier , Filk GoH Barry Childs - Helton and his sidekick Murray Porath , Fan GoH George Gordon and Golden Duck GoH Hal Clement The 11th Duckon was held June 7–9 , 2002 was themed " Some Assembly Required . "