Ok the prototype design came back from the company that makes custom plate frames. I've attached it to this post. Here is a description of their plate frames. If you've seen the KC Region one I have on the back of my car it was made by the same company.
"CLASSIC POLISHED STAINLESS STEEL AND BLACK POWDERCOATED FRAMES
18 gauge 304 stainless steel base metal (Will Not Rust or Corrode) not chromed which can peel when hit with rocks and gravel
Universal fit and installation
Includes matching frame finish hardware hider caps
10 year exterior warranty
Two styles to choose from : full wide bottom (open top corners only for top registration tags)and center wide bottom (all four corners open for registration tag locations)
Frames are available with two or four mounting holes depending on your customer's needs
All are CUSTOM Laser Engraved to your specifications. "
So who would be interested in a license plate frame such as this one? When we did a group buy for the KC Region a couple of years ago the pricing was around $25 per frame if memory serves correct, obviously if we have larger quantity we could probably do just as well if not better, I'll have to check.
------------- UPDATE SEPT 2008 ---------------
Although this group buy is over, you can still purchase these individually at the following website:
Club Name Badge Order FORMS
Cayman Club License Plate Frame Order Form