So my darling daughter wants 6 mint state Lincoln cents out of my bin for school. Why? These mint luster beauties will be part of a chemical experiment where they will be under fire. Oh the humanity! Being a dork, I give her grief for abusing pieces that are integral to our beloved hobby. The shame!! Ah heck, I am grabbing a Shiner Bock.
I heart Shiner Bock. I lived on it for a year and a half when in Austin. I'll shed a tear for the coins!
I'd get six British pennies from the dealers junkbox and scrub them brighr. That was the -exact- request, right?
On the other hand, you will then have 6 "error" coins, or so I'm told. (OK, it's a shame that I have to say this, but please, I beg of you, before anyone takes this to heart, please consider my use of sarcasm/humor!)
No need for fire - just put six shiny zincolns on a windowsill for a few years and they'll look like this (one will have evaporated completely)