Try to keep it practical (like something that would be fairly doable, you just havent gotten around to it…yet)
There are apps that you can input text into and they can replace the characters in each word incrementally to help learn them. Wanna get into that
Like a hose? What is non conductive?
I wouldn’t clip onto a hose, but maybe some plastic flashing or a plastic bracket. Most cars have something near the battery that would work. It’s not essential; just can make it a little easier.