Why not come to your next water fight properly equipped? An off-the-shelf squirt gun is too lightweight and you can't drag a hose everywhere. Build a head mounted water-cannon and show the water-warfare world who's the boss.
This definitely won't be a duct tape and paper clip job by any measure. You'll need to scavenge garage sales or flea markets to get your hands on an old fire extinguisher and hit the hardware store for some parts. But the end product is quite an impressive piece of water-based weaponry. Check out the video below for a quick overview of the construction process and a demonstration:
Check out the PDF at the link below for a full write up and instructions courtesy of Make Magazine and, as always, if you have your own weekend projects—water soaked or otherwise—to share, we want to hear about them in the comments below.
Head-Mounted Water Cannon [Make]