Are you looking for more terrain? It might be easier just to buy more copies - both the original and the Innistrad expansion have been selling for $5 in quite a few places.
No I'm making an urban setting for the back side of the original set since it wasn't reversible like the Innistrad set. I'm making city tiles to use with Heroscape...specifically C3G superheroes. It's part of a project we are working on. I did pick up two sets of the original for $5 each last week mainly for the boards but I couldn't find this set locally.
Of course once I have the templates complete I'm sure I'll make other styles for people.