The ubiquitous Medny Vsadnik calendars have colourful photos on such themes as "Moscow by Night" and "Treasures of the Hermitage". There are also "Russian Tea Drinking" and "Russian Vodka" series, with seasonal samovars or bottles surrounded by snowy outdoor picnics, fireside cakes or dacha gardens. On the "Russian Cuisine" calendar, you even get a recipe for each month, from borshch in January through Easter cake and stewed rabbit to stuffed suckling pig in December. Check out the collection at http://www.mvsadnik.ru/
Where? Practically any bookshop. Biblio Globus has a good selection in the basement, along with art books and poster collections.
How much? About 200 roubles.