Play a refreshing game of water balloon piñatas. 37 Ridiculously Awesome Things To Do In Your Backyard This SummerA Backyard Water Party featuring water balloon piñatas, colored kool-aid ice cubes, fence mural finger painting, & shaving cream pool. Balloon Party, Balloon Tree, Balloon Birthday, Air Balloon, Water Birthday Parties, 5th Birthday, Backyard Birthday, Kids Water Party, Backyard Games