Some people believe that the fur squares are not in the game, but GW makers are not that stupid to forget to put them in. Its very simple to obtain this item.
1. Buy it from another player who knows how to get it.
2. Salvage. To get the fur squares you must Salvage items that will normally give you Tanned Leather Hides. You'll eventually get one.
Fur Squares really are in game!
FatalShinobi