My contribution to the spinner world. Dual spinner using 608 bearings, with "dragon tails" on the sides. For easy printing with no supports, the model is printed in 2 pieces and then glued together before inserting the bearings. Even with that, it's still a little tough to print. Make sure your bed is level and get a nice first layer, especially for the smaller parts of the tails. Also print at a high resolution... I used 0.2 layer height and the tails don't look great (the layers are pretty distinct). I would recommend 0.15 layer height or lower.

Note, I did not make caps for this spinner, so none are provided in the download. I just used some random caps I had, and you can find tons of other caps to print on thingiverse.