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Put a Hole in Your Hand!
To create this illusion you will need the items below (one of your hands and a tube). Use the core tube from a roll of paper towels or make a tube by rolling up a sheet of paper lengthwise.
Now hold your hand if front of you against the tube as in the picture below. Look at your hand with one eye and through the tube with the other eye. This works best if you look at a distant object though the tube.
What do you see? Your hand should look something like the picture below. Try it the other way around with your other hand.
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