Team game using a ball
Several large foam balls
Scouts split into teams (or Patrols)
Teams spread out along the length of the hall. They spread their legs to form a tunnel. On signal they roll a ball along the tunnel until it reaches the person at the back of the line. The rear most person picks up the ball, runs to the front and repeats the process (scouts need to redistribute themselves down the hall each time).
Players cannot move while the ball is rolling, but they can put their hands down to help it on its way. If the ball misses a player and they cannot reach it then THE FRONT PLAYER must run after it and START AGAIN.
When all players have had a go then they all sit down to claim the win. Some teams may needs to make a player go more than once to even things up.