Answer:
I am black and white and full of fuzz
With a halo of water and a tongue of wood; stone as skin long I stood.
You use a knife to slice my head and weep beside me when I am dead.
In buckles or lace I help set the pace. The farther you go the thinner I grow.
I have to be broken before I can be used
What never gets any wetter no matter how hard it rains?