Cap of Authority

Wondrous item, common

Price: 5-10 gp | no sentimentality

This cap looks like something an experienced soldier or seafarer might wear when off duty.

Paid

While wearing the cap, anyone addressing you must succeed a DC 15 Charisma saving throw or be compelled to call you by the title of “captain” until dawn the next day.

Overpaid

You can choose one of the following titles instead of “captain”: “general,” “commander,” or “champion.”

Source: The Gray Merchant of Asphodel