As a numismatist I feel your pain. Though I have not lost a coin in the carpet, as a scale modeler I am very much a victim of the dreaded carpet monster. I have lost a lot of plastic bits, both transparent and not so much. My smallest Byz coin is a 1 nummi. Fortunately the monster has not gobbled it up...yet. DO.15.1, weight approx. 1.13gm, 8mm. Happy Hunting.
I once dropped a republican denarius on my wooden floor and in attempt to move my chair backwards to see where it had gone, one of the wheels of the chair ran over it and crushed it to pieces.....
I found that turning off the lights and using a flashlight laying on the floor causes a shadow from the coin or lost/dropped tiny pill medication dropped. Bites getting old sometimes but better than the alternative.
Thanks for that. In my younger days, I managed a couple catalog/showroom stores in the San Jose, CA area called "Consumers Distributing". All gone now in the US. Anyway, they included a jewelry department with carpeted floors and I seemed to be the only person who was able to find the dropped earring backs and on occasion a single link from a small gold chain that was being sized. Some would say I had a "knack" for it. Don't know why, but I'll take it.