Answer:
What's black when you get it, red when you use it, and white when you're all through with it?
Half-way up the hill, I see you at last, lying beneath me with your sounds and sights. A city in the twilight, dim and vast, with smoking roofs, soft bells, and gleaming lights.
A skin have I, more eyes than one. I can be very nice when I am done.
A thousand colored folds stretch toward the sky. Atop a tender strand, rising from the land, until killed by maiden's hand. Perhaps a token of love, perhaps to say goodbye.
White bird, featherless, flying out of paradise. Flying over sea and land. Dying in my hand.
What is yours but only used by others?