The Magic Wallet
The Magic Wallet may seem like a revolutionary wonder, but it has actually been around since the 1920s. This sly invention originated out of necessity by wait staff in France for squirreling away tips and receipts. Since then, an assortment of look-alikes has been made available all over the globe. The wallet's focal maneuver, though quite impressive, is actually a relatively simple concept.
What You See
A "magic" or trick wallet is a simple, rectangular, booklet-style contraption, slightly larger in size than a standard credit card. This wallet has the ability to open from both its right and left sides. Upon opening the wallet from the right side (as if opening a small book), you will see two small vertical straps over the left side and two small straps over the right side, in the shape of an X. This X is your target. You simply fold your paper bill into a fourth of its size, place the bill on the X and close the wallet. Next, flip the wallet over and open it from the left side. As if by "magic," your bill appears on the right side, conveniently locked into place by the two vertical straps.
The Construction
The theory behind the Magic Wallet is quite elementary. The Magic Wallet is actually a three-paneled object which can be constructed of any malleable material. The first panel is made up of a plain rectangular shape. The third panel is also rectangular in shape, and adorned with straps shaped like an X, covering it. The middle panel consists of two vertical straps connecting the first and third panel. The first panel is then folded under the vertical straps. The wallet now appears as a booklet with the strap panel laying across the first panel on the left side and the panel with the X on the right side.
The Trick
Place an object on the X and fold the left side over the right side. When you flip the wallet over and open it from the left side, you are only opening the first panel. The middle panel consisting of the vertical straps now lays across the third panel which houses the X with the object on it. Et voila!