Team things
 

The handcuff party just sounds like date rape to me.

I like the box party idea, where you have different groups in different rooms and they have a box full of different kinds of alcohol that they have to drink before they can leave the room.

Any other ideas?

I know this is really late since you posted last November and all, but Tour de Franzia is always fun. Try the website www.drinkiwiki.com for games