The Simpsons is still running on FOX in its 25th season and tonight’s Treehouse of Horror XXIV is episode number 532 overall. There are a couple of folks out there that are drawing other characters in the style of that show, Dean at Springfield Punx and Adrien Noterdaem on his tumblr/Flicker page who did the one above of Cosima, Alison, Beth, Helena & Katja.
At one time there was a site on the web that would let you “Simpsonize” yourself, sadly it is no more, but not before I had a chance to make up one of myself: