I've worked with the local Boy Scouts the past few years...I made up a few games...
The first is tic-tac-toe...Divide the boys up to a red, blue and white team...
Take some poker chips, tape them up and down on a target, 3 reds, 3 blue and 3 white....
Each team takes it's turn shooting, any position, with a .22 scoped rifle at 50 yards...
Whoever gets their 3 chips hit first wins...