I think a Wizard of Oz theme idea for halloween kittys would rock. The Cowardly Lion, The Scarecrow, The Tinman, The Flying Monkeys, and a Witch Kitty that has a green face and paws. I would eat all these up as Im sure would many others.
Or the second set, Willie Wonka and the chocolate factory. Different colored Oompa Loompa's lol.