As I'm sure you know, Axel Gerstl also do a Fiat calendar, largely for the 500 but they do sometimes feature the 126 and 600. I suspect some members may be getting the AG calendar too, so it might be worth seeing what sort of layout and theme AG have, and then aiming for something different, so that folks buying both don't think you've simply copied AG's ideas.
I've just checked out the Axel Gerstl calendar for 2016, and it features exclusively Fiat 500s. So may not be of great interest to folks in this Forum but anyway why not have a look:
http://webshop.fiat500126.com/katalog/artikelinfo/7071/fiat-500_126-calendar-2016It's only 8.90 euros (sorry, British keyboard, no euro symbol), and shows a white Giardiniera, which bears an uncanny resemblance to the first car I ever owned, except that mine, being kept in Scotland, crumbled to a pile of rust before my very eyes..
