In the process of building a small scale, portable, dry cell hho mini torch. This will mostly be used to heat up my Ti nail for dabbing and other small projects I usually use my map gas torch for. It'll be 12 volt so I can use it at home on the couch with a plug in, or on the go with any 12v power source. Anyone else on here played with HHO? And no, I quite honestly don't care about putting one on any of my vehicles.