i gave it all a go

http://www.monkeysee.com/play/6354-how- ... to-battery

1: potato battery

http://www.monkeysee.com/play/6355-how- ... on-battery

2: lemon battery

http://www.monkeysee.com/play/6356-how- ... m-canister

3: film canister battery

http://www.monkeysee.com/play/6357-how- ... ltaic-pile

4: voltaic-pile battery

http://www.monkeysee.com/play/6358-how- ... de-battery

5: using the battery

as i said, i gave it all a go post pics/vids of your ones

jack