From the department of useless inventions

[muninnhuginn]

As reported in the NYTimes (registration required for article):

RICHARD DEUTSCH, an electrical engineer and former chiropractor, has come up with an invention that looks like a hockey puck with mesh wings, is sensitive to changes in light and has a tendency to go off with even the slightest bit of movement, which can prompt red flashing lights, crunchy guitar chords and a commercial announcement.
The most notable detail, however, is its intended placement: in the urinals of public restrooms.

And only mentioned here so we can claim to be...