A water canon is a great way to have fun and remain cool under the collar. The head mounted water canon is the latest weapon of wet destruction in town. It is not your average plastic squirter glued on to your helmet – it’s a combo of a pressurized stainless steel fire extinguisher and a motorcycle helmet.

It’s a fire on sight system – look and shoot a jet of water. The helmet with visor serves as protection against retaliatory attacks. The ammo is five gallons of icy cold water at 100psi. Water extinguishers are not used anymore so you probably will be able to scrounge yourself one. Though any helmet will do, we guess you would want to fuss over the look. A few other materials like a bicycle brake lever unit, diver’s backplate, vinyl tubing and a few components go into the assembly.

Its creator, John Young calls it The Ultimate Water Gun. Check out the photo stream and the video above. The detailed instructions show that the end result is not a child’s toy but a serious fun shooter. Make yourself one and go look for a fight. Scoot over to our gallery of Airsoft and Gun projects and take aim at building some custom firepower.

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