A-Z of Comics and Sci-Fi Awesomeness
If you haven't seen Neill's A-Z of Awesomeness, you have been missing out. Virtually every letter is a gem, mixing comics and sci-fi characters in ridiculous alliterative situations, from Optimus Prime Obliterating Oompa Loompas to Hagar the Horrible Hacking Hello Kitty in Half. Check them out in detail here, and then buy the poster -- you can even get it signed and personalized!
(Via Topless Robot)