by dat8962 » Jan 7th, '09, 17:52
A few years back I was working a wedding reception and produced some water from a rolled up bank note courtesty of a TT. I had handed the borrowed not back which was either a £10 or a £20 when a youngster of about 8 asked me to repeat the trick.
I responded by telling him to go and ask his dad for £50 and he trotted off to everyones amusement and laughs.
2 minutes later he re-appeared with a £50 note, getting even more laughs and putting me on the spot.

Member of the Magic Circle & The 2009 British Isles Close-Up Magician of the Year
It's not really an optical illusion - it just looks like one!