Paper Airplanes

[Bongle]

Compromise idea:
I think a good solution would be to make it an official thing. Say "the team that gets a plane the furthest during a designated throwing time (between matches when no-one is speaking) wins a prize". You have to write your team # on each plane. You could also have a prize for greatest mass of paper airplanes cleaned up (to help with the litter issue), but that would be harder to check.

This way, everyone knows that it's not ok to throw them nonstop, but doesn't completely squelch the fun that people have throwing them (I was there in 2011, it was great to watch). It's a mini-engineering challenge. It would also let people in the stands prepare for a deluge of planes so people are aware.