The reindeer game!
All you need is a few pair of large panty-hose and a bag of balloons (get those here!)
Split into 2-3 teams. The goal is to blow as many balloons up as possible and fill the legs of the panty-hose, then put it on someones head to look like a reindeer! It is not as easy as it sounds! Super fun, lots of laughs guaranteed! Be sure to take lots of pictures!
PS: get large or XL panty-hose so they will fit over anyones head)
Another favorite of ours is the paper plate game.