Inspired by BrittLiv check on his here:
https://www.instructables.com/Double-Pendulum-Fidget-Spinner/
I've designed my own using 2 cleaned from grease 607-2RS bearings and a piece of 10mm threaded rod.
I will upload the design file later.
print setting: 0.2mm with brim and 15% infill.
The author hasn't provided the model origin yet.