Anything that will convey the weakness we live with is great in my book! I was trying to explain how mg affects my muscles to a new acquaintence and used the following as an example:

If you tell your arm to move, imagine 100 strong men moving your arm for you. Now, I tell my arm to make the same motion, but only 10 weak men come to help me move my arm. Because there are so few of them and they are weak to begin with, they get tired very quickly and need to rest.

It seemed to help them understand how my muscles work compared to theirs and I overheard them explaining it someone else the same way. Hope this helps!