Answer:
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
I sleep by day, I fly by night. I have no feathers to aid my flight.
What must be in the oven yet can not be baked? Grows in the heat yet shuns the light of day? What sinks in water but rises with air? Looks like skin but is fine as hair?
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
What never gets any wetter no matter how hard it rains?