A hollow pet toy containing an interior compartment is described. The toys interior compartment is accessed through an opening in the exterior fabric of the toy. The purpose of the interior compartment is to hide a treat, examples of which may be a smaller toy or a food-treat. The interior compartment may also contain stuffing in the form of fabric strips, flags, or sleeves, which, in some examples of the invention, are fixed at one end to the interior compartment but which may otherwise be removed from the interior compartment by the pet seeking to discover the treat. Some examples of the invention feature an additional “treat compartment” within the fabric strips, flags, sleeves, or other stuffing of the interior compartment. A treat is placed in one or more of these “treat compartments” for the pet to discover and enjoy.