A binary star is a system of two stars (suns) orbiting each other; thus I had the idea to make a planetary gear with two sun gears.
I'm still playing around with gear interesting designs, and this is one of the better ones in my opinion. It looks quite nice, even like a piece of art, it is interesting to watch in motion, and it is fun to fidget with. The holes are supposed to fit usual hexagonal pencils.
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