Amy, you still up for hosting? I promise to come decorate! It'll look like Santa let you borrow some elves, I swear.
Holiday themed foods are encouraged but not required. I'd suggest one of those cookie exchange things but frankly, I'm not good enough at baking to bother.
EDIT: IT'S TOTALLY AN UGLY SWEATER PARTY!!!!!!!
No excuses! Make your own, buy one, I don't care! I'll even give a prize for the best (read: worst) one!