The Fat Kat Club was given out to "special customers" on opening night.

I've seen blank cards and cards with various actor/rock star names on them.

Most likely those cards were created by the slot club staff and they were never handed out to the actors/rock stars.

It was my understanding that there were bunch of them created this way. Still the cards are value around $15 (but then again, I've never seen one sell at that price).