Answer:
I am nothing but holes tied to holes, yet am strong as iron.
When it is alive we sing, when it is dead we clap our hands. What is it?
The eight of us move forth and back. To protect our king from the foes attack.
It is the assumed nocturnal symbol of Mr. Wayne. What is it?
Up on high I wave away but not a word can I say.
You use it between your head and your toes, the more it works the thinner it grows.