An “Alien Crash” casino. Looks like a flying saucer landed edge-first on the Vegas strip. Right into another hotel. Or two, even.

This gives you the ability to have different styles in the different wings: a lower-echelon hotel on one side, a higher-echelon hotel on the other, and in between, a “sideways” alien hotel, decorated with signs in alien languages. Floors can be numbered in vertical stripes, which might be confusing at first, but would add substantially to the theme.

Drink colors, costumes, etc., are an exercise left to the reader. Though it would be nice to have some Star Trek-like “green girls” on the casino floor…