Pinball is a classic pastime for several generations who love the idea of having fun while killing time. But this kind of pinball would take a long time just to build.
Creating a physics-filled pinball machine on a desk with magnets, marbles, and fidget spinners, among several other things, just sounds like hard work, but it can be done.
You can see the results of one such effort by watching this video:
The impeccable timing needed to make everything work must have taken some time for thought and trial and error, but the finished product is spectacular to watch.
If you ever thought physics was boring in school, this person proved that fun can be had with those tools learned.