Answer:
I am constantly overlooked by everyone but everyone has me.
What comes in many different sizes but is always only 1 foot long?
My head bobs lazily in the sun. You think I'm cute for my face is yellow my hair is white and my body is green.
I am always in front of you, but yet I am never here. What am I?
Fashions change, but what can a person wear that is never out of style?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.