Answer:
The sharp slim blade, that cuts the wind.
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
I can sizzle like bacon, I am made with an egg. I have plenty of backbone, but lack a good leg. I peel layers like onions, but still remain whole. I can be long, like a flagpole, yet fit in a hole.
What can be seen but never found that only hides in the unwound?
I bubble and laugh and spit water in your face. I am no lady, and I don't wear lace.
Dark, feathery, and popular in Baltimore and fantasy books.