Most of us are familiar with agility ladders for footwork development. But here is a nice addition to the basic moves. Have the players pair up and play catch with the Z-ball, you know those hard rubber balls which bounce unpredictably.
Time the players as they play catch while moving from one side of the ladder to the other. The player moving along the ladder has to keep at least one foot inside the ladder runs and avoid stepping on the ladder itself. If they step beyond the ladder or touch it they must start over again. This is a great exercise to develop teamwork and comradery.