i normally try not to spread this around too much incase john ashcroft is listening in, but i think you guys can help me better if you understand the application.
i want to heat 2 nails and push them into a water bottle, poor some distilled water in the bottle, cap it off by tying a balloon over the mouth, and hook the nails up to a large amount of voltage. note: electrolosis does not take large amounts of voltage, thats for later. as my battery sits there turning H2O into H + O the water level will be dropping and the balloon will be filling, hopefully lifting the whole thing off the ground. when the water level gets low enough the nails will be exposed and will spark now that they dont have an insulator between them, thus igniting my contraption in a fiery blaze in the night sky.
problem: get voltage up while keeping weight (and cost) down.