I love a good fidget toy, and NeonGraveStoneArt knocked it out of the park with the fractal and bubble inlays.
Only problem was the magnets I had available were a different size. So I printed out the original and reverse engineered it in solidworks and made a few more small tweaks. Mainly being the magnets I have are larger. I also made the fillet on the body a little more dramatic for a slightly more organic feel in my hand.
The author remixed this model.