Hi All i am planning on building my first cell to power a lawn mower to have proof of concept before i try on my car. I plan on using 20 gauge SS Snare wire that i can get from Canadian Tire for about 4.5 for a roll. I plan to use a nalgene bottle as my cell and not sure what to use as my electrodes. I am going to wrap the snare wire around 2 plastic posts of some sort. Any suggestions what i can use as a post. Readily available things are the best as i don't want to spend that much money (atleast off the bat until i can prove to myself first hand that this works).

thanks!