I like the idea of the calendar. Although choosing only 12 would be tough, I think the final result would be better than displaying 4 per page. We could open up a forum vote where we first pick the 12 peaks (albums), followed by a second vote to pick a single photo for each of the selected peaks. The back cover could be a 6 x 8 mosaic containing a small photo for each peak.
Shutterfly.com charges 15.99 for a single custom calendar, and will send a quote for orders 50 or over.