Hmm... thats an interesting idea. It might work if I had a black interior. Alas I drive a 40th and my seats are red.
I have been thinking of using a piece of Plexiglas since I can shape it with a dremel. That arc at the bottom is the problem. I also found plenty of self adhesive vinyl on Amazon. The problem is I don't need 12 feet of it and I want to see it to match the color to the cubby door. Damn my perfectionism.