All this talk of losing prized firearms and/or parts to the dreaded blue pit of the port-a-john...
Maybe a really strong magnet on a stout length of string needs to go into that range bag... and some disposable surgical gloves too.
You never know...
If it was a whole gun that fell in, cleaning it should be "interesting". It would certainly be the first time I ever saw blue on that patch that wasn't from copper solvent.