This is a neat trick. The working is simple, and any message can appear on the card. My one nit to pick with it is that the card itself. It is not the kind of name card that you normally find at conventions or meetings here in the U.S. So, wearing it seems a little odd when everyone else has a different kind of name card. Of course, with the knowledge about how the trick is constructed, an eterprising person could without a great deal of trouble make up the effect to match more closely the name cards chosen for his/her convention or meeting.