What are some ideas for a social with one of the fraternities on campus?

We always do something fun with the other house before the actual social begins. Some things done in the past have been, eating pizza, watching a movie, playing board games, going to laser tag, a game of sand volley ball, speed dating, etc. Basically it is something to do in order to get to know the guys better and it is an opportunity for the people that do not like to drink to have some fun. Does anyone have any good ideas of other things we could do? I feel like we do the same things all the time and would love some new, fresh, and creative ideas. Thanks!