I used to pick up trash at a DMV warehouse and i once found a motorcycle plate that was all zero's. Just one of those sample plates they hang on the wall, looked interesting so i kept it with a bunch of other junk i would find here and there when working. When ebay started to gain traction back in the late 90's -2000 or so i started selling some of that accumulated " junk". I listed that plate hoping to get a few bucks. I don't recall what it sold for but the bids went crazy being lots of people collect plates. I think i made like 5-6K that year selling nothing but stuff i found in the trash.