..........Those little mini keyring compasses that come in crackers and such, as real compasses.
I was playing with mine earlier on, and it gave me 4 different norths, none of them true, magnetic, or even grid north.
When used alongside my silva compass, the cheapo one pointed 20 degrees off. I then turned 90 degrees by my silva compass, the cheapo one pointed 230 degrees off north.
The silva keyring compasses seem to work fine, but then again, they are no doubt better made than the cheapo ones you get free with things, as well as being slightly bigger and so more usable.
I hope to god no-one uses a cracker compass out in the hills this christmas!!!
Ps. The Silva key ring compasses make a nice little stocking filler!!