The first activity to get people's fine motor and communication skills warmed up, was tower building. Teams had 20 minutes to build the highest tower using only spaghetti and marshmallows.  The spaghetti could only be broken in half, (and no shorter!), or used as a full length.  (You wouldn't believe the excuses team's made about the construction techniques and quality of materials. Beautiful sculptures though, as I'm sure you will agree!)