Wow. Way to bring me back. Looking at the link above I immediately recognized a similar toy that I had in the early 90's. it was of a similar design but with a small electric motor, and a stiff wire about 3ft long running to a control box that also had batteries. The UFO would hover. As I recall it was red and looked like a UFO.

If we're talking toys that don't exist anymore, anybody here ever have a water pressure rocket? You'd add water and then pressurize it with a hand pump. They'd go about 50 ft in the air I think. Once by accident I released a pressurized rocket in my parents kitchen leaving a nice dent in the ceiling.

I remember playing with one of these. I remember it went up and never came back down.

https://www.flyingdiscmuseum.com/novelty/multi-piece/h242871...

Yes, I had one, and it was awesome. The thing went high enough to disappear from view, then gyro’ed safely back to earth.