Pet Memorials, Cat Memorial Stone, Grave Marker, Burial Stone 7-8 Inch. Cat Memorials. Cat Memorial Stone. I will customize your personal pet marker with the engraved outline of a cat sleeping and the pet's name beneath. This engraved stone measure 7-8 inches. Memorialize your pet with this beautiful river stone that will mark the passing of your cat. Perfect for the garden or a pet gravestone. Just leave me the details in the Comment Section during checkout.