Finger food/appetizer ideas for a Halloween party?

I'm having a housewarming/Halloween party on Saturday and will be making chili, but I was wondering what else I could serve or have friends bring. Not too sure what goes with chili and beer, other than more chili and more beer.

Jalapeno cornbread/muffins and/or tortilla chips, oyster crackers. A good cheese dip.

You could also have some chili-buns & hotdogs and/or spaghetti noodles on hand.

If you want to play up the Halloween theme you can dress up a cheese ball to look like a jack-o-lantern. Sausage balls are always welcomed. Southern Living has a version called "Monster Eyes." http://www.southernliving.com/food/holidays-occasions/halloween-party-appetizers-drinks-recipes-00400000055258/

Thanks guys! I'll let you know how it goes.