Freakiest Optical Illusion Gadgets

Shown as an illusion lamp that mimics shifting perspective like a real corridor, with no verdict given.

Explained as strobing lights making falling water appear to rise, with no verdict given.

Explained as a card that redirects light around objects behind it to make them seem to vanish.

Shown as a fidget spinner that creates a moving image by acting like frames in a video.

Explained as two LED rings between two mirrors that appear to go on forever despite being 5 cm thick.