Take a look at the picture below for setup. I came across this game at the Martha Stewart (don’t judge me) Summer Living blog. You need golf tees and ping pong balls. Instead of going to carpentry extremes you can use foam board from a hobby store. Or floral foam. The green stuff they put fake flowers in. Line up a row of golf tees. Place a ping pong ball on each tee. Give each volunteer a squirt gun. The one with the fastest knock down time wins. It might be a good idea to have a leader in a chair on the other side as a laugh. Put goggle son their face and a swimmer’s cap.