This is probably one of the most powerful optical illusions you will ever see:
The handle goes nowhere
A black double shell that looks a bit like a UFO and has a small, round mirrored surface at the top. An Amazon frog sits there, inviting you to touch it. But you can't touch it! Not because the frog jumps away, but because it isn't there at all. Your fingers pass through it as if it were air.
Perfect 3D illusion
Only on closer inspection does it become apparent that the mirrored surface is actually a hole. The frog sits hidden at the bottom of the bowl and has sent its deceptively real 3D image upwards using a sophisticated mirror system. Of course, the small frog provided can be replaced with other objects, e.g. a flower, a nut, a miniature toy or similar.
