Bag of Captured Screams
This medium sized black velvet bag with silver arcane symbols on the inside was originally made by the Kidnappers Guild. Whether it is placed over something or something is placed inside it, no sound can escape the bag. The bag normally weighs nothing but each use increases the bags weight by 1 (in addition to the weight of items in the bag) unless the bag is turned inside out which “empties” the captured sounds all at once.
(Meant to post this yesterday)