Myself, I am applying what I've learned over the years to wood working. Specifically, something called Bessler's Wheel.
While perpetual motion is considered impossible, trying to convince someone that your half deaf in one ear and not brain damaged seems to be a bigger stretch.
But then, I do have a very mechanical background and am well read on physics. And many people in history from henry Ford, to the Wright bros. did a lot of wood working.
Heck, even Bill Boeing built furniture during lean times to keep the doors of the Boeing Airplane Co. open at one time.
And if all works out, I'll have an interesting hobby while having the opportunity to pursue other projects.
I have watched numerous wood working shows and have spent some time getting familiar with what works for me.