Florence Foster Jenkins' Feather Fan

Origin
Florence Foster Jenkins was a socialite and amateur operatic soprano singer. She was infamous for her apparent lack of musical talent, as she had little grasp on rhythm, pitch, tone or tempo. Her pronunciation of words and inaccurate intonation worsened her performances, especially those considered challenging for experienced singers. Objectively, her contraction of syphilis and further arsenic and mercury based treatments likely caused her central nervous system to lose connections, causing her poor performances. Many still flocked to concert halls to witness her reputed concertos.

Effects
When waved, distorts all sound waves it comes into contact with to make pitches unrecognizable. Slowly causes linguistic skills to deteriorate, resulting in slurred words, inconsistent pitch and difficulty forming simple sounds.