Core Reactor Marbles Fidget Spinner

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I wanted a fidget spinner that uses glass marbles for the weights because marbles look cool, but I couldn't find one. So I designed my own as any 3D printing enthusiast would do. Marbles aren't all the same size, but this model should accept anywhere from ~14-16.5mm marbles or so. I've printed a ton of these things and they were a huge hit in my son's 4th grade class. They're "the coolest fidget spinners" - the kids have loads of fidget spinners, but this is their favorite. Since the marbles stick out above and below the spinner more than usual, I've also designed some caps to go with it. They are press fit and should be super tight (no glue needed). Both male and female caps are included. I made this design for kids in mind, so it should fit well in small hands. Just be careful with little ones and small parts!