I can't help you with the price, but is the chip below what you were thinking of? It's a jeton from Paris in Las Vegas. There are several other colors and denominations. Here's a link to Silver State Treasures' website where they show chips from the Paris.

http://www.silver-state-treasures.com/lasvegs/paris.htm

I think they're cool too, but haven't added any to my collection yet.