fidget rings
thingiverse
a lot more rings do the same thing you would for the main thing sorry about the pic it was over 500 kb the second one is the updated outer rings and the third file is the inner rings
Download Model from thingiverse
With this file you will be able to print fidget rings with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on fidget rings.