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1 half cup of vinegar (double for bigger proportions.)
1 tablespoon of Salt (double for bigger proportions.)
2 bowls (plastic, takeout containers...nothing expensive.)
4/5 batteries with accompanying holders (double AA, non-rechargeable, with about 1 volt left in each-you may need 5 if you only have 1 volt per.)
Coins: Quarters, Pennies (Find one dated before 1982.) (Pennies are more successful...believe me.)
Copper Tape (Only if you can't find a penny or don't want to.)
2 aligator clip jumper wires (unless you are using copper tape.)
Tape (Scotch)
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2. I like your idea except for the chemicals.
3. Your voltage was higher.
4. I won't write anything here. This number is unlucky in Chinese.
5. Its not my idea.
6. If you are reading this you must go back and read 5.
7. End.
Sunshiine