Hey, thanks for the comment. I searched for the "Marconick Change" and watched a few videos on it. This is definitely not a Marconick Change. It's actually just a "Shake" or "Twirl" change but w/ a modified grip.
There was one with the hot dog guy where he noticed. Lol, he must have gotten beaten up at least once. A 4.5K pound ring? That's 9 grand here in the US.
You'll probably get a notable more success rate w/ Penn & Teller's. :p
I can't even comprehend how paper money got past those people in the Derren Brown clip.
Alright, we were thinking of two totally different things as ninja pointed out. So, I apologize for the misunderstanding.
Penn and Teller's Bull**** one is the easy one. Derren Brown's isn't.
Wait, don't you already know it?
http://www.youtube.com/watch?v=2jYUd2y5nlw
Is this the one we were talking about? I think we may be talking about different things.