keychain compass?

Suunto - the wrist version or the type which includes a thermometer. Slight modification with your trusty Dremel and a split ring makes for a small unit.
 
I've got a Marbles compass, nice and small and solid brass, a very nice little compass. Would be right at home on a keyring.;)
 
Thanks for the pointers,everyone! I'm off to do a little research and see which one's for me. :)
 
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