Water balloon fights can liven up any boring summer day. When you want to get serious about winning, forget throwing them—get a water balloon cannon on your side. You can build this DIY project ...

Water balloon fights can liven up any boring summer day. When you want to get serious about winning, forget throwing them-get a water balloon cannon on your side. You can build this DIY project from ...

Build an Air Cannon for Cheap DIY Water Balloon and Potato Launching. Jason Fitzpatrick December 4, 2010 Comments. If the cost of all that hairspray and sacks of potatoes is ...