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!
Ribbon dispenser from 2 plastic soda bottles. Put a disk of cardboard cut from cereal boxes in between each ribbon roll. Thread ribbon rolls on a dowel. The rubber bands hold the bottle together and also holds down the ribbons