Make a backyard bowling alley. Add food coloring to clear plastic bottles of water. Use party streamers as lane margins. Add glow sticks for night bowling. (These would make great outdoor table nightlights also with the glowsticks, gonna try it!
Displaying Outside Games = Tin-Can Toss.
Homemade Monster bean bag toss game- For indoor or outdoor fun. Also can double for photo ops: kids love to stick their heads in the monster's mouth!
Check out this list of Creative and Fun Backyard Ideas and find some interesting things to do out there in your backyard. A lot of these would make for fun part
Fun with water, great recycled plastic bottle project. This could be pretty if you used wine bottles. It's just a matter of figuring out how to cut a hole in the side.
DIY Bean Bag Toss game using painted plastic party cups
Check out this fun Sponge Bullseye game for kids to play, along with more DIY Summer Activities to try over summer break!