Have any friends seen or played with this gyro? Uploaded.

Yes, familiar toys. Oh, I remember that when I was a child, it was different from today's children. Girls played badminton, "repaired the house" (cut the corncob into sections, strung it together with hemp rope, drew some squares on the ground, and kicked the corncob between squares), and boys played with rollers and buckets (lifted one leg and used each other's knees). Hehe, it suddenly brings back too many memories! Now there are gyroscopes, and everything I have seen is electric, which is not as fun as before.