Team challenge and could be used as an ice-breaker, although it could be organised to provide a challenge at the individual level.
Put a plastic duck in the bottom of an empty bucket and source of water a short distance away.
The objective is to fill the bucket with water so that duck rises and eventually floats out of the bucket. However, the source of water and the bucket with the duck in it cannot be moved AND players are not allowed to put their feet on the ground when transporting any water.