Harvey's Central City, CO (owned by Harrah's - but has never issued the Harrah's cards) had the Mobile Graceland display on October 30. They did not issue the Elvis Slot Cards, but if you put 100 points on your Harvey's Slot Card, they'd give you 1 of these Elvis Phone Cards and a chocolate CD (made by Russell Stover's). The phone card has 10 minutes on it.

I do not know if all the casinos where the Mobile Graceland display visits has these or not - or if those casinos make you earn points in order to get the phone card. I know a couple people who are planning to go to Laughlin (late November) for the Mobile Graceland exhibit, I'll ask them to inquire about the phone cards.