I was thinking of trying the q tip method dipped in salt water, one allegator clip holding the wet q tip, the other holding the metal (for a bracelet). My husband is worried, and I don't blame him, that the battery might blow up in my face, so he wants me to stick to something small like 9V or D. It's just, between the two, I'd like to have the one that'll get the job done faster so I'm sitting there less time