Abstract: A cat scratcher in the form of a rigid shell having a planar base and opposing side walls. The opposing side walls extending diagonally and outwardly from the planar base. A first block of open-fluted cardboard is affixed to the planar base and second and third open-fluted cardboard blocks are affixed to the opposing side walls respectively creating an open space within the rigid shell having three open-fluted cardboard surfaces upon which a cat can scratch.