You Can't Get it Wrong - No Electronics

<div> In front of you there are three wooden bases, one of which has a hole in its center. Show a large sharp nail, and put it with its point upwards into the hole in the base. You then cover the bases with paper cups, and turn around. A spectator mixes the cups around. When you turn around, with the help of your &ldquo;magical&rdquo; Instinctively you squash flat two of the three cups with the palm of your hand. Of course you are not harmed, and under the third cup there is the sharp nail.</div> <div> &nbsp;</div> <div> &bull;<span class="Apple-tab-span" style="white-space: pre;"> </span>The apparatus is made with care, is safe, and does NOT rely on electronics.</div> <div> &bull;<span class="Apple-tab-span" style="white-space:pre"> </span>The nail is 9cm (3.5") tall with a diameter of 0.6cm (0.2"). The wooden bases measure 9cm (3.5") on each side and are 2cm (0.8") thick.</div> <div> &nbsp;</div> <div> <strong>Item not to be sold to anyone underage.</strong></div>