I basically have two examples in mind. One would be a sketch of every Ghost Rider cover. Another would be inspired by my favorite album covers.
Your idea sounds very cool, though. I'd love to see how that turns out!
My sketch collection: http://sketchcollectors.com/gallery.php?user_id=727
I'm offloading my sports cards for cheap. Check out MonkeyLots in a B/S/T forum near you!