Donnie & Marie issued at Flamingo Las Vegas (now a Harrah's property) where they are appearing.

Tripadvisor is from Caesars.

NECA I'm not sure. (The person who sent it to me said he had gotten the convention keys at Mandalay Bay and Caesars, so it could possibly be either of those. But then again, maybe he doesn't remember for sure where he got it.) I've sent the scan to Larry Kopp and listed it as casino/hotel unknown. Perhaps someone can give us a more definite word.