S. John Ross has a freeware font called Punkinhead available here (you'll need to scroll about a third of the way down). The idea is that you print them at a ridiculously high point size and use them as templates for Jack O' Lanterns. Enjoy!
"Man, is there anything Jeff CAN'T do when it comes to gaming? This guy is like a critical 20 every roll. Jeff can bite the heads offa five game geeks, including their sorry-ass DM, and spit 'em into a large duffel bag ONE AT A TIME!...that's just the kind of messed up bastard he is! You think yer a gamer, punk? Well..do ya? Jeff will depants your weasel-ass right in front of your grandma."