Produce Your Own Hydrogen – The Homemade Hydrogen Generator – LED Journal
DIY HHO Systems
I made a Hydrogen Generator that produces hydrogen gas using salt water. I collected some off the gas in a balloon and set it on fire. If you're interested in seeing that
HHO Generator Makes Bubbles That Go Boom | Hackaday
How to Build a hydrogen generator « Hacks, Mods & Circuitry :: Gadget Hacks