Well the SUPER BOWL parties will be starting early tomorrow I am sure. I have heard it said that this sunday is the biggest party of all including New Years for get togethers!
I thought maybe some party idea food would be a good thing to be thinking about so here is some I thought of.

Have it be a BYOB for those that drink. If people want a drink let them bring what they like, less cost for you.

Finger sandwiches is fast and easy, or just make regular ones and cut them smaller. Use smaller amount of meat, and add more lettuce.
Or do egg salad.

Make a huge batch of chili, its great to feed a bunch. Add a couple different kinds of shredded cheese to a bowl for people to pick from and you have it pretty easy for a crowd.

Make your own bean dip. Grab a can of refried beans, add come salsa and you have a whole bunch of bean dip for snacks.

Do a pot luck style snack party. Ask everyone to bring their favorite snacks to the party.

Do some veggies to dip. Carrots are super frugal, add a little ranch dressing to a bowl and put out some veggies to dip.

Do some flavored popcorn.....its very frugal. Make it garlic by adding some garlic salt. Make it cajun by adding cajun flavors. Southwest by adding chili powder and a little curry. Ranch flavored by adding some dry ranch dressing mix.

Make fast stuffed biscuits. Roll out biscuit to make flat. Add some pepperoni, cheese, ham, chicken whatever you have. Fold them shut and bake until golden brown.

English muffin pizza's. Cut muffin in half. Spread with some tomato sauce, add some spice you like. Top with shredded cheese and mircowave or put in the over until the cheese is melted.

Tort snacks.
Add cheese to a tortilla. Top with another tort, heat in mircowave until cheese is melted. Cut in to triangles and serve with salsa.

Hope this helps!