I've been looking for a while...here's a site that has some decent stuff. It appears that the main "challenge", at least for the V6, is finding a plate holder that has two -- not four -- screw holes that are slightly "indented" -- i.e. not at the far right and left hand corners of the top.
Other issue for me is that here in the People's Republic, you must display both a front and back license plate, or else I would get a cool picture/logo type plate for the front...like the ones I saw via the link below:
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