Magic Item: Cowl of Voice Disguise

This nondescript grey cowl is popular among the shadowy underbelly of society.  When pulled up over the mouth and nose, the cowl changes the voice of the wearer. The voice is usually made deep and gravelly. 

The most famous use of one of these cowls was when the crowned princess of Manujah donned the cowl, along with dark clothing, to break in and steal jewelry and gems from other noble houses in the city. In a few of these houses, a deep-voiced male was heard taunting guards on the way out after filling "his" pouch with jewels. When the thief was finally apprehended, and the cowl removed, the princess was unmasked.