Yes, I really like that idea as well. There are certainly some excellent ideas out there from our fellow institutions! Of course, the effectiveness of these ideas depends on making sure the facilitator/faculty member (whomever is doing that particular activity)is keyed in to the 'mission' of the activity.
Student bonding, in some respects, is the single most effective things we can help create. The ability for them to keep each other in school can be an awesome and wonderful thing!