This is really a fantastic gag. However, be warned that you can't just hand it over for examination
as he does in the video. You can exchange the gimmicked one for the ungimmicked one and hand out
the ungimmicked one for examination, but you wouldn't want to hand out the gimmicked one as he
apparently does in the demo video. In spite of the demo discrepancy, I think it is a great little
effect. I'm still trying to figure out a storyline or even a gagline for it, but I really like the
effect. Also, it is nicely made. Very clever device.