Re: Rather different
My brother was an F-16 and B-1 engine mechanic back in the day. His shop had a large, perfectly smooth and level titanium table used for alignment and calibration. It also had a raised border guard all around it.
Flash back to the 60s and 70s, when as kids we had a game called Battling Top (https://nostalgiacentral.com/pop-culture/toys-games/battling-tops/). Great fun, we played it often.
Flash forward to my brother's shop. Yep. He introduced his fellow mechanics to the game, only this time played on a titanium surface by people with metal-shop equipment at their disposal. Lunch and break times saw fierce competition. All manner of designs evolved -- one top carried, via bearings, a non spinning frame with arms that would drop magnets when the top was jostled, hoping to destabilize competitors (nice idea but it didn't win).
IT angle: one day someone brought in a platter assembly from a disk pack. For the youngsters here, these were several metal platters about a foot in diameter, stacked several inches (or higher) on a heavy metal spindle. This particular assembly had a spindle that, at bottom, came down to a precisely machined cone with a sharp point. Quite literally, this thing was made to spin.
The guy spun it up with an air compressor.
Seconds later, everyone in the shop dove for cover as the other tops began making contact -- and ricocheting off equipment on the way to embedding themselves in the walls.
No one dared touch the assembly until it stopped spinning on its own. The point on the spindle was now nicely rounded.
They declared the fellow the Ultimate and Eternal Lord of Battling Tops and never played again.