I saw on amazon they sell the alligator clips with wires a 12 volt battery and an aluminum pie tray usually bought together what's the purpose for the aluminum pie tray? I never saw this before was just curious. I think it may just be cheaper to by the 26$ one you guys sell don't know how much the shipping is though. Would be cool to make my own I like the setup they use with the 3 9 volts it's pretty cool. I'm going to have to try and come up with some money somehow, someway.