[chaseideas]

Cool idea! Here's a product my ad network manages the promotion for that is quite similar: http://go.chaseclicks.net/SHHK

There isn't as large of a variety of woods, but there is good flexibility in pricing, size, and it's more for photographs and keepsakes than a map of an area.

Also, not trying to detract from your post by sharing this other product, just thought it was very similar and thought I'd share. Looks like a well thought out system and business model! Best of luck!!