Are you looking for that little extra "something" to kick your entry up a notch in the upcoming PopSci/Instructables Halloween contest? Then you might want to consider some professional help. No, not a therapist, rather a Cordless Pumpkin Carving Tool by Dremel.
Carving's its name, and pumpkins are its game.
Pre-supplied with ten terrifying templates, this tool can quickly transform a common gourd into a ghoulish delight. Just glue one of the supplied templates (or concoct your own devilish design) on a pumpkin, switch on the Dremel tool, and trace the template with the tool's vegetable cutting bit. Please note that you aren't trying to cut through the pumpkin -- rather, you are using the Dremel tool to sculpt the pumpkin's surface. With a little practice, your custom-cut jack o' lantern can be very impressive.
When finished, the professionally sculpted pumpkin could be a great base for housing a lighting/sound effects platform (hint, hint).
While the Dremel Cordless Pumpkin Carving Tool carries a list price of $44, through Amazon has it for just $20. Throw in free shipping and you can spend the extra cash accessorizing your neighborly fright night, and/or your entry for the contest.