Supplies:  A stack of copier paper and some type of tall barrier like a chalk board.

Let the boys make lots of paper airplanes then divide the boys into two groups, one on each side of the barrier.  Put half the paper airplanes on each side of the divider.  Explain that they can only throw ONE plane at a time and they must stop when the leader says "stop".  When you say go, they throw the airplanes over the divider as fast as they can with planes flying in both directions at once.  Let them go about 3 minutes.  Give them a ten second warning and then say "stop".  Count the airplanes on each side of the divider.  The team with the least number of planes wins.  Repeat it a number of times, keeping track of the wins to get the champions.
A bag of socks can also be used instead of the planes.

You can also have them write on each plane one point of the Scout Law and at the end hava each team race to lay out in order 12 planes with the 12 points of the scout law in order.