Anyone have any yummy recipes for a Halloween potluck?

I need a ping dish for my potluck at work tomorrow. I prefer something easy and inexpensive to prepare. There are five of us and I know one is bringing a cream cheese/salsa tortilla chip dip, someone else is bringing sloppy joes and another is bringing dessert, possibly red velvet cake. I want something creative and more like an appetizer so to speak than a main dish. Please help! All recipes and ideas are appreciated!