What an ingenious method! As long as the angles are good, this is a killer effect! Whether using
your teeth or just one hand to 'pull the card through the window', it will blow people's minds.
The only drawback for me is having to wear 2 layers (over and under shirt). I hardly ever do
that as its' very hot in south Georgia.
I haven't tried it yet, but I am looking forward to
blowing some minds!