Caesars Palace moved their VIP checkin to the new Augustus tower recently. When I checked in this week, the room key was a blue card with a photo of the pool and columns with palm trees in the background. There's no manumark on the reverse. I don't know whether these are used at regular checkin or not. I have a few traders, preferably for non-Nevada slot cards, although I could use some newer Las Vegas room keys as well.