Home >> Toys >> Backyard Toys

How to Build a Water Balloon Catapult

In the summertime, water fights are a great way to cool off. In order to win such a fight, tactics should be implemented. Being able to strike your opponents from a distance is a huge advantage. For this purpose you should employ a water-balloon catapult capable of launching water balloons a large distance. You can make one from materials commonly found in a home building store.

Things You'll Need

16 feet surgical tubing
Plastic funnel
Drill
Knife

Instructions

- 1
  Drill four holes through the rim of your plastic funnel using the drill. Space the four holes evenly around the perimeter of the wide end of the funnel so that there is one at the top, bottom and each side.
- 2
  Cut the surgical tubing into two 8-foot pieces using the knife.
- 3
  Tie a knot in the end of one of the pieces of surgical tubing and feed the other end through one of the holes drilled in the funnel, from the inside to the outside.
- 4
  Feed the other end of this piece of surgical tubing through one of the two holes next to it. Tie a knot in the end of this tube once through the funnel, this is one half of the catapult propulsion system.
- 5
  Tie a knot in the other piece of surgical tubing and connect it to the funnel in the same fashion as the first piece of tubing, using the two remaining holes of the funnel.
- 6
  Trim excess tubing remaining from the knotted end inside the funnel. This is where the water balloon will be placed.
- 7
  Have two friends each firmly hold one loop of surgical tubing while you place a water balloon in the funnel, pull the funnel back and release.

Backyard Toys