Impossible Instant Lab

I find this little gadget interesting. Its like a darkroom and enlarger in miniature.

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Has anyone here tried it or bought it?
Im curious if you instead of a picture on your Phone, could use a white rectangle and tape a 35mm negative onto the screen and get a analog instant copy of your negative?

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You'd need a light source behind the negative, and what you'd get would be a positive image of a piece of negative film. Not sure I see the point.