I had to do it...too cool. The JP is wet because the dogs attack when I hit the button so I need to play outside. I hope to scare some Cub Scouts at an event tomorrow. The battery and button on the right is for the beacon.
At $45 bucks here is a more affordable way to do this, a mechanical CO2 servo controller that can be dispensed remotely. Of course all the pipings, battery pack and receiver board will be needed for this to work. I'll be implementing this in my JP when I have the funds for it.