Welcome,
Parmastahir! It's good to have a member adding a new aspect of Tolkienism to the site! We have discussed collector's items in the past on this thread:
The Collection Grows, so if you wade through or skim over those 21 pages, there is sure to be mention of some calendar or other.
I took a brief peek at your site, and though you say you don't collect movie-related calendars, I would like to mention that, as far as I know, a movie bookmark calendar (see it
here) is Germany's unique contribution to the topic. Aside from the German Tolkien Society's calendar (which has an illustration by Anke Eissmann, a wonderful young artist whom I met in Birmingham last summer), which you have on your list, I am not aware of any others that are available only in Germany. I wish Anke Eissmann, whose Tolkien and related artwork can be seen on her
website, would do a whole calendar. Her paintings are fantastic - I'd buy it in a heartbeat!