Cub Scouts is the activity program for the Primary, at least for the boys who are 8, 9 and 10, and that means that you DO things.  So, for our training we DID something, and that something was to make Stomp Rockets.  It was actually a lot of fun, and if you want to make one yourself, you can find the instructions similar to the ones we used here.
The launcher
The only picture I have of the rocket (made out of magazine pages and tape), but it also shows the two wonderful ladies I got to work with, and the chopsticks we used as “markers” to show where the rockets landed.