I received exactly 12 photos of the right size and just made a calendar with the photos. The calendar as it stands now is at http://www.cafepress.com/WashWool.420392491
There are two other sizes too at the store at http://www.cafepress.com/WashWool
Let me know what you think!
Just an FYI, if you have not had a chance to submit photos, you still can! If I get enough I thought I might make a second calendar.