Marble Races with a cheap pool noodle (occupies the kids for hours.) Did this, but instead of cutting the pool noodle, the marble is small enough to fit inside the full noodle to roll down. Then can use the noodle for other things too!
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!
How to Make a Stunning Coral Reef for you Under the Sea Party, Mermaid Party, or VBS. DIY By Press Print Party #OceanCommotion #Underthesea #mermaid Decorations