Answer:
I am an activity involving pins flying in the air.
I can be found in water but never wet
I love to twist and dance. Though wingless I fly high up into the sky.
I can sizzle like bacon. I am made from 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.
I am the only thing that always tells the truth. I show off everything that I see. I come in all shapes and sizes. What am I?
I am rarely touched but often held. If you are smart you'll use me well. What am I?