Knu,
I think the only way that would look good is if you can offer it as a full trim kit where you can do all of the parts in metal trim. Otherwise I think it could possibly look like a hack job someone did with a can of Krylon that doesn't fit the rest of the scheme of the car. I haven't really done any aesthetic mods to the inside of my car yet, but if these were available in a full kit in actual metal, I might have an interest. My .02
Rick
