Here's a method for a complete card vanish off the deck, which has its roots in Erdnase and I'm sure within earlier texts, utlizing pieces of existing methods with a special convincing auditory subtlety that I've added.
http://www.youtube.com/watch?v=EsxFK5ij_3A
http://www.youtube.com/watch?v=EsxFK5ij_3A