Abstract: A noise producing toy structure includes a toy having an outer wall and a crown raised from the outer wall, the outer wall defining an inner space and the crown defining a chamber; an opening for passing ambient fluid into the chamber; and a noise producing element placing the inner space in fluid communication with chamber. The crown hinders access to the noise producing element to resist unintended removal of the noise producing element. A noise producing toy structure includes a toy having an outer wall, a noise producing element disposed in the outer wall for placing the inner space in fluid communication with an environment; and a wall upright from the outer wall at a position proximal to the noise producing element. The wall has a free end to space a user from the noise producing element to hinder access to the noise producing element.

Abstract: A multilayer pet toy has an inner structure having an inner-structure resilient material; an outer structure joined to the inner structure, the outer structure having a first layer having a first sandwich structure, the first sandwich structure having an outer-structure resilient material and a non-resilient material. Therein, the inner structure resilient material includes a first rubber compound that has a percentage of 30% or less by weight of natural rubber and a remainder being filler. The outer-structure resilient material includes a second rubber compound that has a percentage of 44% or more by weight of natural rubber and a remainder being filler.

Abstract: A small animal structure includes several modular units slideably interconnected to form a maze and at least one end cap secured to at least one modular unit. The modular units have a common bottom edge defining an open bottom of the small animal structure. A combination of a small-animal structure and a small-animal cage includes modular units slideably interconnected to form a maze. The modular units have a common bottom edge defining an open bottom of the small-animal structure. The small-animal structure is mounted on a floor of the small animal cage.

Abstract: A sound-making pet toy includes a shell having an opening and an inner space accessible through the opening and a sound-making body having a reduced state and an expanded state larger than the reduced state. When the sound-making body is disposed in the opening, it has the reduced state and when it is disposed in the inner space, it has the expanded state. The sound-making body has a resilient air-holding body and a sound making device that is responsive to air from the air holding body passing through the sound-making body. When the sound-making body is in the expanded state, it is lodged against the inner surface of the shell. When the sound-making body is in the expanded state, it expels air from the resilient air holding body when a force impacts the shell. In the expanded state, it is larger than the opening.

Abstract: A small animal habitat includes a base, a wall extension, and a roof that define an interior space. In the interior space, an animal entertainment device is positioned distal from the base and a platform is spaced from the base providing access to the entertainment device. A climbing structure permits access to the platform. A first animal traversable path from the base to the animal entertainment device includes a first substantially vertical climb and a first substantially horizontal traverse on the platform. A second animal traversable path from the base to the port includes the first substantially vertical climb, a second substantially horizontal traverse on the platform, and a second substantially vertical climb to a port in the roof.

Abstract: An animal entertainment device comprises a guide unit and a wheel that travels on the guide unit.

Abstract: A biodegradable chew toy having a first body that is made of a first biodegradable material have first characteristic. A second body is made of a second biodegradable material having a second characteristic. The second body is overmolded by the first body. The first characteristic and the second characteristic differ by elasticity.

Abstract: A noise producing toy structure includes a toy having an outer wall and a crown raised from the outer wall, the outer wall defining an inner space and the crown defining a chamber; an opening for passing ambient fluid into the chamber; and a noise producing element placing the inner space in fluid communication with chamber. The crown hinders access to the noise producing element to resist unintended removal of the noise producing element. A noise producing toy structure includes a toy having an outer wall, a noise producing element disposed in the outer wall for placing the inner space in fluid communication with an environment; and a wall upright from the outer wall at a position proximal to the noise producing element. The wall has a free end to space a user from the noise producing element to hinder access to the noise producing element.

Abstract: A noise producing toy structure includes a toy having an outer wall, the outer wall defining an inner space; a sealed cavity and a chamber disposed in the inner space; an opening in the outer wall for passing ambient fluid into the chamber; and a noise producing element placing the sealed cavity in fluid communication with chamber. The opening is disposed at an axis collinear with a longitudinal axis of the noise producing element. A noise producing toy structure includes a toy having an outer wall, the outer wall defining an inner space; a sealed cavity and a chamber disposed in the inner space; an opening in the outer wall for passing ambient fluid into the chamber; a noise producing element placing the cavity in fluid communication with chamber; and an inner wall structure for defining the sealed cavity. The inner wall structure has a transverse wall.

Abstract: A locking system for a small animal habitat includes a latch having a strike member and a catch having a first and a second catch section. A portion of the strike member slides over at least on catch section to secure latch to the catch. An end of the strike member slides over the first catch section by the force of gravity. A pet habitat includes a locking system having a latch having a strike member and a catch having a first and a second catch section. A portion of the strike member slides over at least on catch section to secure latch to the catch. An end of the strike member slides over the first catch section by the force of gravity. When the pet habitat is placed in an open position when the top portion is hingedly moved away from the bottom portion and the top portion is released from the open position, the latch engages the catch so that the end of the strike member slides over the first catch section by the force of gravity.

Abstract: An animal entertainment device includes an animal powered wheel that has a pair of axle ends, each axle end having a first and second circumferential wheel having different diameters and a pair of first rails and a pair of second rails. The first circumferential wheels engages the first pair of rails in a traversable portion of the first rails, the second circumferential wheels engages the second pair of rails in an end portion of the second rails to return the animal powered wheel to the traversable portion.

Abstract: An animal conduit includes a first and a second longitudinal segment. Each segment includes ridges extending inward toward a longitudinal centerline of the animal conduit. The ridges differ in a dimension extending inward and forming a first and second transverse conduit opening dimension that differ.

Abstract: A method of making a noise producing toy includes the steps of providing a noise producing assembly; providing or molding a first body portion having a first material and having an aperture, the first material having a material that is conducive mounting of the noise producing assembly into the aperture; mounting the first body portion on a mandrel of a mold core, the mold core for forming at least part of a body of the noise producing toy; molding a second body portion to engage the first body portion on a mold core to form at least part of the body, separating the mandrel and mold core and the at least part toy body; mounting the noise producing assembly into the aperture.

Abstract: A sound-making pet toy includes a shell having an opening and an inner space accessible through the opening and a sound-making body having a reduced state and an expanded state larger than the reduced state. When the sound-making body is disposed in the opening, it has the reduced state and when it is disposed in the inner space, it has the expanded state. The sound-making body has a resilient air-holding body and a sound making device that is responsive to air from the air holding body passing through the sound-making body. When the sound-making body is in the expanded state, it is lodged against the inner surface of the shell. When the sound-making body is in the expanded state, it expels air from the resilient air holding body when a force impacts the shell. In the expanded state, it is larger than the opening.