A good ol’ water balloon battle is a super way to cool off from the summer heat. Let’s turn the fun-o-meter waaaayyy up on this classic with a little DIY tinkerin’! Using their beach towel, one team launches a balloon in the air toward the other team. That team tries to catch the balloon in their towel without breaking it. Go back and forth with the same balloon as long as you can; toss in a new balloon as soon as one breaks to keep the fun goin’. Track the number of broken balloons, ‘cause the…