Concentric Fidget, print in place

I've printed this in PET-G and PLA,and ABS, it's a lovely fun desk toy, and demonstration for 3D printing.

You can get some of the outer rings apart, but you have to try, so not 100% perfect, but decent. I printed with 0.4mm nozzle and accuracy worked otu well.

Drawing it was literally 3 steps:
1. Draw concentric circle with correct diameters for width of rings and spacing
2. Revovle the rings
3. Cut the sides off symetrically

I expect there may be a more elegant way to do it, but it