Water Mortar Drenches the CompetitionTravis Hudson5/14/07 5:20pm21EditPromoteGo to permalinkThe traditional summer water balloon fight just got a little more intense. Fill up a water balloon and load it into this shoulder-mounted water mortar. It uses a spring-loaded mechanism to fire the water balloon. The effective range is anywhere from 15 to 20 feet, and this device is sure to piss off Mom. $40.