Answer:
Crooked as a rainbow, and slick as a plate, Ten thousand horses can't pull it straight.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.
I bind it and it walks. I loose it and it stops.
Screaming, soaring seeking sky. Flowers of fire flying high, Eastern art from ancient time, Name me now and solve this rhyme.
What tastes better than it smells?
You use it between your head and your toes, the more it works the thinner it grows.