a wastebasket
1 or 2 tennis balls, nerf balls, or similar

Everyone stands in a circle around the wastebasket, facing inward.
A scout tries to make a basket.
If he makes a basket, his patrol gets 1 point.
If he misses, his patrol loses 3 points. But, he can get those three points back by immediately doing 3 sit-ups, 3 push-ups, or running 1 lap around the circle of scouts.
First patrol to a specified score is the winner.

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You might want to use 2 balls for a larger group.

An unbiased leader by the wastebasket could help retrieve the ball and toss it to the next scout.