The Biological State Museum of K.A. Timiryazev hosts a large exposition dedicated to mycology and fungi, including large collection of neatly made models of mushrooms (http://www.gbmt.ru/ru/display/4.php).
I visited the exhibition today, on the way back from Syktyvkar to Khanty-Mansiysk.
The mushroom models there were made by an artist A.F. Manaev, and there are about 100 species of agarics, bolete, discomycetes, clavarioid, gasteroid fungi, e.g. different systematical groups are well showed. The main exposition showing diversity and ecology (habitats) of larger fungi, but there are also models of poisonous species and their edible similarities. And posters show fungal development and phytopathology.