Aveda showed me this little gem. It's called a Guimbarde, or more commonly known as a Jew's Harp or Marranzano.
http://en.wikipedia.org/wiki/Jew's_harp
Traditionally, it goes in the mouth and you pluck the cord and blow air currents through it in order to produce music. It could teach the Winds skill I suppose, but we're in dire need of a one-handed weatherproof string instrument, so I feel it would be best suited as a String instrument. I imagine it would just be worn, and you would just need an available hand in order to play it successfully.
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~Leilond - Working up to Galren and Mazrian
http://i67.photobucket.com/albums/h307/ss1shadow/leicollagefinal.jpg
http://www.elanthipedia.com/wiki/Leilond
http://soundsoftime.bravehost.com/bard_planner_v3.xls