I used to make kaleidoscopes out of colored glass and first surface mirrors. These are not cheap projects, as the first surface mirrors were a bit pricey. You also needed all the solder, glass cutters, soldering iron, work surface and time that you would need for any other kind of leaded glass project. It isn’t stained glass, as that is the kind of stuff that has an image, like you see in old church windows. Leaded glass is just stained glass without the pictures. My kaleidoscopes were pretty simple, three straight triangular tubes with a couple of wheels of colored…