Dick Levassuer, VP at the FQ's patented them. They fell out of machines as you played.

Elsinor owned the FQ's and were partners in the Playboy in AC.
When they took over the Playboy and renamed it the Atlantis, they took the tokens there.

When the RIO opened the marketing mgr at the FQ's was hired as the VP of marketing and licensed the tokens for the RIO.

She tried to take me to the Rio also. I recommended my wife and she got the job.

Not sure if the Hyatt Regency in Tahoe used them. Elisnore owned it also.

Along came slot cards and ended a good run for the tokens.