This is something even David Copperfield would be proud of. Don't get scared by the Japanese spoken here and just keep watching the clip until the end, it is self-explanatory. Here is Cyril's site if you want more info. And here's another trick (with a very good looking female subject- I must say our magician hasn't got such a bad taste...) on YouTube (btw, YouTube has several Cyril videoclips). Commercial, but with style.
Thanks to Nora for the link to the "fishy card trick" videoclip.