Science: Health: Foot
Footbrush   (+3, -1)  [vote for, against]
Sold singularly for the sole.

Unlike most foot related products the Footbrush is not sold in pairs. It is a coarse hygiene product that can be worn on either foot, and is meant to be used alternately to cleanse each foot of dead, dry and damaged skin, using the uncoordinated, and idle motions of the other foot.
-- rcarty, Feb 21 2013

random, halfbakery