DIY Kids Summer Activity Games...take a ladder and put up "points" papers on each rung. Have the kids throw bean bags, etc through the holes and add up their points!! Many other cute activities in this site.
Spray Away Game ~ Kids get to "spray-away" a ping-pong ball off a golf tee with spray from a water gun. Cover a strip of foam board with paper and insert golf tees. Set up ping pong balls and let the fun begin :)