Back when I was doing strolling card magic, I'd have killed for this piece. OK, maybe only simple
assault.
It seems to me that using a borrowed deck (with permission to tear cards) is the
best angle. And getting the gaff - such as it is - can also be done right under their noses; when
making the 'tear' in the 'box' card, rip all the way to get two pieces. "Oops, too much of a tear,"
and put the pieces in your pocket so you can prepare another card. You're on.
The
step-by-step instructions, including an over the shoulder segment, are very easy to follow and all
the angles are covered.
For under ten bucks, you simply cannot go wrong.