Have you ever seen the energizer machine at the St. Louis Science Center?
https://www.youtube.com/watch?v=bW9sc5z0XvY
Rube Goldberg approves!
Somewhere; buried under the stack of obsolete computers in my basement; is a program that probably runs on a 3.1 machine; that let’s you build a virtual machine in your computer that contains many of the things seen in this video.
I’ve wasted a BUNCH of hours playing with that!
My eye is also drawn to the plastic toys in the Toys “R” us store that let you build REAL working things quite similar but, of course, much smaller.