Martha Stewart's chow Paw Paw, a frequent gushed-over guest on her TV show, has died of renal failure, reports AP. The pooch got his name—Kublai Khan Paw Paw Chow Chow Chow—for his huge paws. "Paw Paw was a spectacular chow and an even more spectacular dog," the queen of domestic arts wrote in her blog. "He was always my loyal companion."