Mike Maihack put a bunch of Adventure Time art up for sale at eBay.
Some strange monsters recently posted by Jeremy Fish (warning, Assquatch).
Batmobile by Brendan Deboy.
Mockingbird, Catwoman, and Space Ghost by James Brouwer.
Astro Girl by Richard Lyons.
Borg Mary Poppins by Kelly Tindall (based on a Twitter suggestion).
*Buy Space Ghost toys at eBay.