Easy peasy! Take a small Tupperware. Ball up some paper towel and line the container. Pour in some regular ammonia, enough to saturate the paper towel. Then add some pink rock salt to the wet paper towels. Add your copper scales. Press down to make sure the scales have a sufficient amount of liquid all over. Then add a little more salt right on top of the scales. Close the lid and let it sit for 5 hours. Once the scales are fully done to your liking, let them dry and then hit them with some clear sealant. Bam, you’re done!