Gyro Toy
This is my attempt at a spinning gyro like this one:
https://www.amazon.com/Original-TEDCO-Gyroscope-Nostalgic-Pak/dp/B00000IU7S
You'll need two 22mm bearings for the spinning shaft, four 16mm bearings for counterweight, and 4 M3 bolts (10mm Should do).
UPDATE
Version 1 of my gryo does not work very well. I uploaded Version 2 components and will update them as needed.