Make the longest chain possible using only the items the group has their bodies.
Divide group into two or three teams of at least 4 members each. Each group must make a chain using only the objects on their bodies. The chain could include belts shoe laces, shirts, coats and of course arms and legs. All items must be connected and NOT touch the ground with the exception of feet. Humans can be included in the chain. Tell the groups they will have 5 minutes to plan (no clothing can be removed at this point) and then 2 minute to execute the plan. The group with the longest chain will win a prize.