Great Designs guys. I just thought it would be a a nice way to get the kids social in team sports, so I tried to add a Dye cartridge that could mix with the water inside of the gun. Each group of kids could pick their favorite color, and you could tell who you hit at the end of the game. The Dye would ofcourse be water soluble so as not to ruin any clothing that the kids would have on.
Just wanted to make it a little bit of a nuisance for the moms out there. 
