Chorus Mask
Wondrous item, common
Price: 5-200 gp | no sentimentality
This mask depicts an exaggerated smiling face. It belonged to an actor who was part of the chorus of a comedic play.
Paid
When you wear the mask, you hear voices that comment on your surroundings and the events occurring around you. The commentary is never useful and often mundane but occasionally cutting and witty.
Overpaid
When you wear the mask and make snide remarks or strategize within hearing range of people, you can choose who hears you.
Source: The Gray Merchant of Asphodel