Answer:
I'm tall I'm round and hollow Seems to get chewed a bit But you'll rarely see me unless the other end is lit.
I only exist when you are here. Where you never were I can never be.
My first is in some but not in all. My second is in tiny but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing rugs used every day.
What do you call a pig that is no fun to be around?
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.