Winnie the Pooh and Martian Tripods by Robert Brandenburg for Gallery 1988's Crazy for Cult show.
Ramona Flowers by NC Winters, also for the show.
Cable, Spider-Girl, and War Machine as Green Lanterns by lastscionz.
Chibi Batgirls and Robins by Karen Wang (available for purchase as buttons).
Delirium by Mike McCarthy.