An animal chew may include a first elongated half and a second elongated half rotatably secured to the first elongated half, wherein the first and second elongated halves are rotatable around an axis of rotation. The animal chew may also include a locking pin retained between the first elongated half and the second elongated half, wherein the locking pin slides up and down the axis of rotation into a locked position and an unlocked position. The animal chew may further include a chamber having an opening and an interior volume, wherein the chamber is formed in at least one of the first elongated half and the second elongated half. When the locking pin is in the locked position, rotation of the first elongated half relative to the second elongated half is impeded.
