The best way is to make your own generator . Usse a simple 9 to 12 volt ac c converter or what is called a wall wort. Split the two wires at the end and connect them to alegator clips. Stick the silver wires to these and threw two holes about 3 inches apart in a plastic lid and into a quart of distilled water. Plug the wall wort in and run for about 6 hours. Makes the best silver. Store in dark glass.