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A kind of kaleidoscope from childhood :)

yeah something like that for sure :D

It was a fun toy, but it got boring quickly :)

never got one. So not sure about it

It's a paper cylinder with mirrors and broken glass, when looking through the eyepiece you could see colored fractals :)

I know what it is. I just never had any.

I think you can find one in a toy store and take a look at how the world was seen by children of my era :)