User blog comment:ElsaRules!!!/Artifacts that cause muteness/@comment-4820455-20140606025243

William the Silent's Helmet: Renders a person mute to their peers.

Paul Broca's Surgical Scissors: Instantaneously clips the handlers vocal chords, rendering them mute.

Hendrick Avercamp's Ice Skating Shoes: Allows the wearer to manipulate their body weight and agility, abling them to perform graceful and majestic tricks. Renders the wearer mute afterwards.

Duncan Campbell's Lodestone Collection: A relatively small collection lodestones used to 'convey the souls of the dead'. They were given the ability to produce spectral voices at the cost of the handlers voice.