The Stylized Slave Collars and Headgears Mod adds more styles for slave collar and a new bridle item, which is based on medieval scold’s bridle, but has more modern variations in form of styles. It restricts the wearer’s talking to 10% and eating to 50% (in comparison, Capacity Deprivation’s mouthfold forbid talking entirely).
The Slave bridle uses the exact same stats as the slave collar but occupies a Full Head slot, which means it’s also crafted at tailoring benches. Not smithy.