Shelby loves her marrow bones. She either goes outside or I will put one of her blankies on the kitchen floor. At my grocery store they often will have them out with the other meats in 6 packs for three bucks or so and labeled "soup bones" Once they didn't have any out so I went to the butcher counter and asked if they had any, he said "No, but I can cut some up for ya" So he goes into the walkin freezer and comes out with this huge femur bone, holds it up high and says laughing "do you want this big one or cut it up?" 
