The Stations properties (GVR and Red Rock I have seen so far) have been coming out with their "one bet only" chips lately.

I remember a funny story from Binions. I had a coupon for $25 1 bet only and didn't think much about it. Put it on Blackjack and hit a 20. Thought I was good. She draws to 20 and takes my ticket. I had to read the fine print (win, lose, draw the ticket is done).