Those were just a couple things I did real fast... My wife and i own a Hearing aid dispensing business and I do all the repairs and make custom hearing aids there in my lab. One of those repairs is to the shells. I use UV curing plastic material that requires sanding and buffing after curing and hence having a buffer at the office... I found that polishing aluminum is quite messy in comparison and well, messy is not something I want at the office so I only did these items there and brought another buffer home so that I can do some more items at home and make a mess,

For the record, I can make these more shiny. I spent aprox 10 minutes on these as the buffing compound I use on the hearing aids does a fantastic job cutting on the aluminum quickly.