This Game is meant for Cub Scouts.

ping pong ball
chalk or tape

draw or tape two parallel lines on floor about 18-24 inches apart.

Make two teams.
Each team kneels behind their goal line.
The leader places a ping pong ball between the two goal lines.
On 'Go', each team tries to blow the ball over the opposing goal line.
Award a point for each goal.
You may also award penalty shots or penalty points for touching the ball or touching the playing field.