Wow - coin bite...that is almost a self expanitory perspective on this effect.
Phenom - you know what...add "2 card monte" (actually called "Be Honest What Is It, by Eddie Fletcher" and the Balducci Leviatation to your act and people will say...you are like that Blaine guy. Wouldn't that be grand?
Personally, I prefer to offer effects that people don't see on re-runs - as there is so much magic out there, why do something that was popularized by a TV magician.
Good luck with your card through window.