I've always loved the idea of doing a Mad Hatter tea. There aren't really a lot of tea options in Vegas and the ones that are there are at the high end hotels on the Strip so there isn't a lot of room for anything whimsical which is kind of a bummer (they're all fairly expensive too).
The Sanderson has a really fun Alice in Wonderland theme complete with pastries shaped like clocks and various items from the books. I had come across it when I was researching afternoon teas online prior to the trip and just had to book it. So cute!
Everything was appropriately themed and also super yummy.