Hi Tom,
We have a glittery green plastic key fob, on one side it says "Harrah's Reno and Lake Tahoe Nevada" on the other it says "Tahoe City Travelodge P.O. box 431 Tahoe City...."

We have a brownish color plastic fob, on one side it says "For fine food cocktails and gaming visit Hawthorne Monte Carlo Hawthorne Nevada" on the other side "Lariat Motel p.o. box 649 Fallon, Nev..."

We also have a green fob, with key, "let yourself go! Harolds Club Reno". On the other side "Reno Travelodge...."

My theory is that the casinos used this as a form of advertising?