Hydrophone Eyeballhat
From the MAKE Flickr photo pool

Vancouver microphone-maker Trust in Dust made this condenser mic for underwater use. That silicone membrane creates a strangely ocular appearance – the optional top hat adds a uniquely Residents-esque feel :o – Condenser Hydrophone on FlickrIn the Maker Shed:
Alteredcuriousities
Altered Curiosities