Retrieving Loose Nipple from Inside Rim So I have a wheelset that I really like, only problem is the first time I rode the wheels a nipple came off the spoke when I launched off a speed bump going downhill.  For a long time it was silent (the nipple must have been stuck in some stan's or something) but recently its come loose and rattles all over the place when braking.  I am pretty sure this is going to drive me crazy.

Looking for strategies that people have found successful for getting a nipple out in this situation.  I figure if worst comes to worst I can take the tire off, remove the valve core and put a dab of rubber cement in the rim that will hopefully catch the nipple.  But I'd like to fish it out if I can.
If you take the rim tape off you should be able to shake it out through one of the holes that you insert the nipples through. I've dropped a few inside rims and never had a problem getting them out this way.