I stopped by Lowe's yesterday and located the fastener section. A clerk was nearby and I described what I was looking for and I mentioned they were on the Lowe's website for $.80. He led me to the section where there were two sliding drawers marked Automotive fasteners. Both Metal, and plastic. When he open the drawer right off I saw what I was looking for. There were several types of plugs, some for Ford, Chrysler, Nissan, GM, etc. After looking through the supply I found these.
I thought the gray would be best to work with than black. They fit perfectly in my Bumper. I will spray with adhesive promoter, prime and spray the Arctic Silver base coat and clear coat. So for a half gallon of diesel and a little time spent and the cost of 80 cents plus tax for the two, I think I am way ahead of the game. A final picture of the buttons installed will come later.