For all of you coin enthusiasts out there and elongated penny collectors, you will probably find this Instructable very helpful. I collect elongated pennies (you know, those penny smashing machines you see in museums and whatnot) however, after a while the pennies would start to lost their shine because of oxidation (in layman's terms: when the pennies are exposed to air, they lose their shine gradually)
I found out that you can restore the shine by rubbing a pencil eraser on the coin and therefore polishing it, however the process is long, hard, boring, and it kills your wrist.
The way I polish pennies uses the same concept, but is much more faster.
The pros and cons of this method are:
-No volatile chemicals/ fumes
-You could get a better shine with chemicals
-It would be faster with chemicals
When I write Instructables I put multiple pictures showing multiple steps on only one step, so be sure to look at all of the pictures.
Step 1: The tools
-A small vice
-A bunch of those cheap pencils you can get at the dollar store
-A small saw (like one you'd get on a multitool)
-Dirty, oxidized pennies just waiting to be polished