The extremely popular YouTube channel Numberphile (popular among nerds at least), they often tread into magical territory. Here one of their frequent guests Tadashi, explains an amusing technique for levitating a pingpong ball (and the physics behind it.)
When I was the host of Magic Tonight in Toronto, the comedy magician extraordinaire Wes Zaharuk used to use this as a bit in his show to great effect:
Wes Zaharuk