I think I saw some at the Las Vegas Club and the Gold Coast. It's an IGT slot and it's been around awhile, so I would imagine it can be found in lots of places.
Caesars Entertainment has a neat slot finder, and Boyd Gaming does too. Both have several locations in town. I've found their locators to be accurate, as far as they go. They don't tell you exactly where they are, so you'll have to do some searching.
Good luck.
