The way this one works is you get threaded cartridges, screw them in. It punctures it while you screw it in. Then there is that quarter turn valve that releases the air from the cartridge to the tube.

I have looked all over the forum and couldnt find this. I have a handheld confetti launcher I got from here http://www.flutterfetti.com/page/PL/PROD/HHCO2/QTR-101 It works great and could be used for other applications. I was wondering if anyone knew where to get the part that the little CO2 cartrid...