Answer:
What has a bell but isn't a church. Is full of air but is not a balloon?
A seed am I, three letters make my name. Take away two and I still sound the same.
It's equally comfortable in an orchestra and a geometry textbook. What is it?
Beautiful girls strut and sexy men 'do their little turn' on this.
Weight in my belly, Trees on my back, I travel fast in my place, but feet is a feature I lack
I am free the first time and second time but the third time is going to cost you money.