In the past few years, we have covered plenty of amazing Novascopes here. This 16-Inch Star Matrix Novascope is one of the coolest ones we have seen though. It is a large geodesic spheroscope from David Sugich that produces trippy imagery. You can use it with flashlights and UV lights to experiment.
More gadgets like this: here
You can find these kaleidoscopes on Novascopes.com. More info is available here.
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