All right, gang, I've had a few requests for this - a Halloween Open Thread. Try to keep it vaguely on the topic of the day (i.e. no recycling of non-Halloween tips you've submitted until the weekend; I may yet use some tomorrow), and post your best pics, gifs, stories, anecdotes, fan fics and videos of pumpkins, costumes and haunted house displays. The nerdier the better, obviously - but cosplay is nerdy to begin with, so most things are allowable.
(Video above found via Laughing Squid; dino-pumpkins via SlyDante777)