Beavers play balloon volleyball in two teams, first to reach 10 points wins.
Suspend a piece of string across the room are at approximately head height.
Divide players into two teams and position them on either side of the string.
One team serves by hitting the balloon over the string and the other team must return the balloon without allowing it to fall to the ground.
When the balloon is not returned, the other team scores a point.
First team to reach 10 points wins.
Introduce more than one balloon?