It occurred to me that these might also be the tokens Michael was referring to. These all have images of LV casino $100 chips on them. I show the Sahara chip to compare with the image on the token. Note the shape of the inlay is different from the chip from the Sahara. Haven't found the corresponding chips for other casinos but I'll be they are our there.

The roulette wheel is on all the reverses.

These were purchased off eBay about 5 years ago, one at a time. I have never seen another set. As I recall, they all had a felt pad attached to the reverse as if to make them paperweights, but they really aren't large enought to serve that purpose very well.