I never could get leyden jars to work. I'm trying to use a few 3 liter bottles I have here at home. I also have quite a few solar panels and other materials like aluminum foil and copper. I was thinking today that it seems it would be easier to have 2 bottles, 1 with a copper lead dipping down into the water of the jar to use as a positive pole and another bottle with a copper lead dipping down into the water of the jar to use as a negative pole. Will this work? Can I charge the 2 bottles up with the positive and negative leads of my solar panel? Would the charge from a 3-6 volt solar panel be enough to get a spark over time if I touch the 2 leads from the 2 bottles together after a few minutes? Thanks.