Bag of Golden Hornets

This innocuous leather pouch seems to be nothing more than an ordinary coin purse. Looking inside of it reveals that it is, in fact, filled with gold coins. Examining the coins shows that they are marked with the profile of a king on one side, and a hornet on the other. The coins can be used as standard tender in most transactions. However, upon leaving the hands of anyone removing them from the pouch, one minute later, each coin transforms into an angry hornet and attacks anyone nearby. The hornets will disappear one hour later. If any coins are missing from the pouch, it refills itself to exactly one hundred hornet coins each dawn.

Notes: Shapechanging, Deception, Container, Cursed, transmutation