Convincing Kobold Mask (Patreon)

Wondrous item, common

A headpiece made in an effort to flawlessly replicate the likeness of a Kobold.

Kobold Kin. This item causes Kobolds to perceive the wearer as one of their own; just uglier and misshapen. If your size is small or smaller, you gain advantage on any Charisma checks made regarding Kobolds. If you are of medium size or larger, wearing this item causes any Charisma checks made regarding Kobolds to be made with disadvantage as they look upon you with jealousy for your size.

Kobolds be not the brightest of creatures, fooling one takes little more than a well-crafted disguise. Be wary though; they're prickly little buggers, might not be too keen on you waltzing in with all 5 feet of height you've got. And a pack of angry kobold's is a problem for anyone.