Fool the Discourse

[Kanped]

So, Penn and Teller: Fool Us was a lot of fun.  I thought it might be fun to expand on the idea with a thread here.  Just upload a video of a trick and see how long it takes someone to work out how you did it (we'll try to speak in code in our answers but you DO have to let someone know when they get it close enough to correct).  I'll keep a leaderboard of the top 5 tricks that last the longest unsolved as long as the thread is active.  What do you guys think?  Sound Fun?

CLARIFICATION: Original stuff only, please.  No breaking copyright and if we work i out because we bought it, too, that ruins the fun.

Leaderboard

Name                 Trick                           Time
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[NathanCanadas]

Point of clarification: Does it need to be an original trick or just any trick we have seen and know how it works?
Other than that, sounds fun!

[xela]

Only problem is a copyrighted trick. A stipulation should be an original trick, or an original modification to an existing trick.