There's an Obama craze going on in comics, and the new president is suddenly showing up in books ranging from "Spider-Man" to "Barack the Barbarian," where an axe-wielding Obama fights the evil Boosh and Chainknee while Sarah Palin runs around in a wolf-skin bikini, and even an Obama vs. zombies comics team-up with Ash from "The Evil Dead." Check out this countdown of the best and most bizarre comic book cameos by the Fanboy in Chief. (via ComicsAlliance)