Here is another simple trick with a sixpence. Put a small piece of wax
on it, and place it, the waxed side uppermost, in the centre of a
handkerchief. Then put one of the lower corners of the handkerchief over
the coin and ask some one to put his finger on it and press it. Then
move the second lower corner of the handkerchief over the other corner,
telling your assistant to move his finger while you do so. Next cover
the two lower corners with the two upper corners of the handkerchief in
the same manner, and ask your assistant if he is sure the sixpence is
still there. Of course he will say yes; he can feel it. Then tell him to
raise his finger. When he does so, take the two upper corners in your
hands, and raise the handkerchief, when the coin will appear to have
vanished. Of course, it is sticking to the lower corner of the
handkerchief.