Anti-Droon audio paddle
From Tardis Wiki, the free Doctor Who reference
The anti-Droon audio paddle was a device used to remove Droon from human hosts. It was a black, spoon-like object. It created an infrasonic burst, which would disorient humans and damage hatching Droon. Torchwood Three used an anti-Droon audio paddle when removing Droon from Mr and Mrs Peeters. (PROSE: Border Princes)
