Amulet of Catnip

A small gold amulet with the carved jade likeness of a cat on the front. The wearer can use an action to cast the spell polymorph on themselves, but they can only take the form of a housecat. The spell does not require concentration and lasts for 1 hour or until the wearer is reduced to 0 hit points, at which point they revert as normal per the spell. 

Once this feature has been used, the amulet cannot be used in this way again until the next dawn.