Over the years of building, I have made a whole lot of launchers, some of them more special than others. Here's a few launchers, some of them were huge time-consuming projects, some of theme were a bit spontaneous. Here, you can see such launchers as the 12-inch diameter cannon that launches 5-gallon buckets of water, the semi-automatic propane-injected backpack combustion launcher (Proton Pack), a 1.5" Quick Exhaust Valve cannon, a pneumatic golf ball cannon housed in a golf club bag with onboard CO2 and electronic control, a 13-foot-long combustion cannon that launches 20 and 24 oz soda bottles (thawed and frozen), a special hybrid cannon that uses both compressed air and propane to generate extremely high power (very strong thick pvc), and my very first spud cannon complete with purple primer stains (I use clear primer now).

   (Picture with barrel coming soon.)