Something else that would be cool is a little victrola that plays the music from Quentin's Theme. Maybe one that about 5 inches square and made of silver, lots od detail. I think that would be real cool. I'd buy it.
A fan made one (unofficially) in the years before I became involved with fandom but I was lucky to find someone at a Dealer's table who was taking bids to sell hers. It's much like you described, but it's a gold tone, over 3 inches wide, and winds to play "Quentin's Theme"; it was very nicely made. I could feel her pain over having to part with it. More recently, a limited number of pianos that play "Ode to Angelique" were also made. So yes, it's been done.
I appreciate good collectibles, but as jimbo and I discussed before, I did not hesitate to pass on getting any of the new plates.
How many places does that particular image of Quentin already appear? And what a bizarre choice it was to use the face from PT Angelique's portrait!