I used a heavy duty double sided tape advertised to hold items to brick etc on the exterior of homes. I got it at Home Depot or Loew's, and put a strip on the top and bottom of the back of the oval, then lined it up exactly where I wanted it on the front, then carefully pushed it into place. We have had it on for 2 years. I believe that if I ever want to take it off, I can use fishing line to separate the tape from the oval, then clean the tape from the coach. It is a pretty permanent mount, but doesn't require holes. Oh, by the way, I have the 3m type plastic protective coating on the front of the coach where I stuck it, so it is not directly on the paint. Hope that helps.
