The Riviera "Winter Sports" tokens are just that. Tokens commemorating winter sports NOT "The Olympics." The IOC guards their name and logo against any use very strictly. It is my understanding that they agressively sue anyone illegally attempting to profit form any use a logo that copies or closely copies their image or name. I am sure that the Riviera was aware of this and has therefore had designs made that are not similar to any "Olympics" images. You will note that they did not even use the word "Olympics" on the tokens.