And
furthermore, if you strip the pins out carefully, making notes and
measuring them, then you will be able to put them back in exactly as they
came out.  Useful, if you ever get the real key. 
 Even if you don't note down the order, it's fairly easy to determine by
 trial and erorr if yoyu have the right key -- try each pin in the first
 hole until you find one that's level with the top of the plug (inner
 cylinder), repeat for all the other holes.
 -tony
  
 
And if you're really hardcore (Tony) then you could probably get any key
that physically fitted into the lock, then make your own pins from
brazing rod.
Gordon.