Hard Boiled Softies Dog Toy bounces and grunts while being soft enough to cuddle! Stuffing free sheep. Durable rubber ball that grunts. Plush exterior. Why We Love It: These egg-shaped stuffing-less critters may look soft, but they?re hard-boiled enough to stand up to the roughest players! The secret to their surprising sturdiness is a thick, durable rubber shell under their soft plush exterior. A really loud squeaker ?yolk? captivates dogs, not to mention the crazy bounce that makes them both lovable and fetch-able.