(YouTube Link)
In this variation on Dr. Seuss' classic How the Grinch Stole Christmas, Rorschach from Watchmen punishes the people of New York City for their Christmas cheer. I'm not sure who the author is, but I've seen it vaguely referenced to the posters at 4chan -- and I'm not about to go searching that site to find out for sure.
via Popped Culture