I found one of these in a lot of random chips I picked up:

http://chipguide.themogh.org/cg_chip2.php?id=NVLS16&v=3287631258

It's a $5 chip from "Las Vegas Signs and Designs". Is this a casino? No way, right? This has to be some kind of promotional piece, right? This would never have been used at a craps table or anything, right?