Used to be

I used to be a weed.
Now I am a bright yellow dandelion on a hill top.
I used to be black rubber sitting in a factory.
Now I am a playground where little kids joyfully play.
I used to be scrap metal in a junkyard.
Now I am a beautiful mermaid in someone's backyard, a top feature of yard art.
I used to be a hole in the ground, where people would pass everyday.
Now I am a place where people live and stay.
I used to be a cardboard box at a post office, used for packaging.
Now I am a spaceship, where a child's imagination soars through space.
I used to be the wool on a sheep.
Now I am a warm coat on a dark winter night, the only thing a homeless person has.