A bench mounted buffing wheel that looked straight out of a shop class except it was pretty and clean. Not sure what the buffing wheels were made of but they looked the same as the ones we polished brass with in shop class. She used the white color rouge. Here are links to what I "think" she was using. She actually shined up the entire earpiece once I saw how shiny they became. She said I could get the same stuff anywhere and use my dremel.
Keep in mind Im not positive these are what she was using but they sure look like it.