During my seminary class today one of my classmates mentioned in a presentation that he had become a rather successful practicer of yo. He does yo-yo demonstrations at schools and churches. I was amazed by this unexpected bit of information so I asked him to show off his yo-yo skills, and he gladly did so.
Here's a little video of some of what he can do (nowhere near as impressive as real life):
And, here's his website. Yes, he likes puns.