Important part of the Eastern Rennaissance warfare - wagon tabor - common peasant carts combined into a defence line to prevent that ubiquos cavalry from cutting poor bloody infantry to the man. By the way, famous word "Gulyay-Gorod" (walking town) was used by moscovites to determine wagon tabor only to the end of 16th century. Afterwards it fell out of use.
Here is a set I finished recently - it has 4 different carts, wooden shields and various barricades, as well as 2 bonus gunners with heavy hook-guns commonly used to defend this wagon fortress.
