Back-Up Plan

A Banjo with gold and enamel inlays, and a cheek guard. The instrument doubles as a shotgun with a barrel that follows the neck, with a triggering mechanism near the base of the neck.

Takes an action to use. Firing the shotgun consumes one spell slot. Using a first level spell lot will make a ranged spell attack for 1d8 damage. Upcasting increases damage by 1d8 per level. 

Gives the attuned one extra charge of bardic inspiration.  

On a 1 or 2 will malfunction, causing the user to take half of the rolled damage. 

Notes: Must play "Dueling Banjos" with intense concentration for a full hour.