It all started as I was just cleaning my golden dollars (from varnish) and the amazing happened. I accidently left on in the vinegar too long! And to my surprise, I started seeing changes in the dollar. I decided to leave it in the vinegar for a few weeks, and the whole manganese gold cover acidic-ally came off, but I couldn't find the cover because it had melted. And to my awareness, I had a copper golden dollar!
All of this instructable is pretty easy, and very cheap!
Step 1: What You Will Need
1. Golden dollar
3. Paper towels
4. A glass container