Obviously, you don’t do something like this to be practical. As George Willer often said “I did it because I could”. It’d be my luck, one of the center mowers would refuse to start. Several years ago, there was a fella who attended some local shows, with a walk behind tractor with 21 small Briggs and Stratton engines. The starting procedure was quite a process guaranteed to draw a crowd. He rope started one engine, engaged a belt and two more would start, engage a belt and several started, and so forth. It served no purpose, was totally useless but was a real crowd pleaser. I wonder what became of it?