Uh- yeah. I'm fine. But I couldn't see all the way to the bottom. There was a spot of something dark on the inside. Rust, maybe, I dunno.

[Not that the stone it's made of can rust as far as he knows, but he's no geologist. He pulls himself to his feet.]

You can do that flying thing, right? What if you try?

[Presuming Buggy does: there's a layer of something old and brown on the inside of the cup. It's slightly gritty if touched, and leaves a dark stain if wiped away.]