Especially when there's some mad person with a folder where they put ALL their markups, correspondence and revisions in the same folder, with no sub folders 🤢.
Only for entertainment not for practical.
I actually feel a bit of sadness with all the work put into the design for such simple task. Like troubleshooting nightmare.
I imagine, for them, it's not about the 'simple task', its the journey.
Maybe The Marble Machine will cheer you up. I know it cheers me up. (I discovered Wintergatan in the pandemic... love their music. and he's still working on a new version of that thing.)
From a mech engineering point of view, they are really good practice for understanding different aspects of practical physics and materials. (I. E. If this lever spins the ball CW, the ball will go here; spinning it CCW will make it go there. Having the ball go down a ramp make it goes fast that it jump over the hole, making it go down 10mm steps slows it enough to hit the target.)