How about this, spin the bearing contest.
Instead of spinning the bearing as we usually do, it’s spinning in the sense like a coin on the floor. Basically you can use any bearing as long as it’s size C, but it should be deshielded and you must show some proof that the bearing is not modified (adding weights etc).
The rule is to spin the bearing with only your hands on the floor and the floor must not be movable. The one who beats the record wins, but here is the twist.
Say the op set a “world record”, it must not be entirely impossible but the competitors cannot see the record, maybe he can set the record and show the mods or someone he trust just to confirm the truth and let him see if it’s actually possible.
Next, for every 5 entries the world record moved up by one second, or something like that. This ensures that it’s possible for someone to beat the record, also it’s possible for everyone to fail.
You don’t need to own an expensive yoyo to do this, and it’s not skill based (in the sense of yoyoing), just a C bearing, hands, and floor.
Even the most stupid thing needs skill you know.