North Paw: Vibro Compass Anklet
From: Maker Faire

Inspired by the feelSpace belt from Germany, the North Paw is worn on the
ankle and provides the user a persistent sense of the direction of North.
There are eight vibrating motors; the one on North side of your ankle will be
on. 

What makes it way more more awesome than a regular compass? Persistence. With
a regular compass, the owner only knows the direction when he or she checks
it. With this compass, the information enters the wearer's brain at a
subconscious level, giving the wearer a true feeling of absolute direction,
rather than an intellectual knowledge as with a regular compass. 

Because of the plasticity of the brain, it has been shown that most wearers
gain a new sense of absolute direction, giving them a superhuman ability to
navigate their surroundings. 

Kit by Sensebridge:
http://sensebridge.net/
http://sensebridge.net/projects/northpaw/

feelSpace belt
http://feelspace.cogsci.uni-osnabrueck.de/en/index.html