Answer:
In the evening I'm long, in the morning I'm smallΝΎ When seen in a ballroom, I'm nothing at all.
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
What loses its head in the morning and gets it back at night?
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
I am your mother's brother's only brother in law. Who am I?