My 12th square is Batman. I grew up with the reruns of the Adam West show, then some of the different cartoons, including The Justice League from the 70's (Saturday Morning), the 90's Animation, and the Detective/Batman Comics. I have not been a big fan of any of the movies.
This is not the original square, but the alternate square. The original had the bat logo in the sky over the city. I preferred the logo that represented the original logo. It is also Not reversed. I decided to leave the back mirrored.