Answer:
I am a tool for fairies.
What goes through towns and over hills but never moves?
Railroad Crossing, look out for the cars. Can you spell that, without any R's?
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
You heard me before and then again. Afterward I die, until you call me again. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.