I’m a sucker for optical illusions and visual fodder. Recently, I came across the intriguing objects created by Prof. Kokichi Sugihara of Japan. He seems to be a leading expert, specializing on impossible 3-D objects. Miraculously, their reflections in a mirror create quite a different image.
As you can see, the mirror image of the arrow points in the opposite direction. In addition, once you turn the arrow 180 degrees on its pole, the tip of the arrow seems to jump back right into its original direction of pointing. Absolutely stunning!
This second illusion even lends itself to a little card trick. Show the object with the four card symbols as a “secret prediction.” Then force the Four of Hearts on your spectator and offer “a backstage view” on the illusion. In the mirror, your helper will discover the correct prediction of his chosen card!
Unpaid and unsolicited advertising: I bought these objects at Magic Center Harri, one of Germany’s big, respected, and trustworthy magic dealers. These are simple plastic props, others are made of cardboard. Prices are low, starting around 10 Dollars, and one of them may be a perfect addition to your online magic show!