Here's an unedited video showing NI's NITRO FRC-style robot shooting soccer ball shaped stress balls high into the ceiling of the pit area. This was taken at the Atlanta Finals of the FIRST robotics competition.
NI started off with hundreds of these little balls and ended up tossing them all into the crowd. The ball shown in the video being shot over and over again was the last one left. They were saving it so they could run the demonstration.