User blog:ElsaRules!!!/Artifacts that cause muteness

I was talking to my one friend who is just getting into Warehouse 13. He enjoys imagining that the artifacts are real, and he wants to know what artifacts can cause muteness in another person. His reasoning in reality is that his brothers will not shut up, and he wants something that would mute them. I've searched the database, but we have nothing that causes muteness in others. Any ideas?-It doesn't matter if it has a severe downside or not.