Mounting a custom gauge bezel on my dash

So I have been toying with the idea of building some custom bezels. I do have "SOME" fiberglassing experience so I'm will to take a crack at it. My question is, does anyone have any suggestions on how I can mount a bezel on the center of my dash or on the A pillar without drilling holes and having screws sticking out of my bezel? Is glue a sufficient holder or should I build some tabs/posts on the bottom of the bezel and mount in to holes then glue? Or is there some way I don't even know of that I could mount something securely and classy looking?

Thanks in advance!!