Answer:
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
What is it that given one, you'll have either two or none?
You can have it, and be at it, But it never lasts forever.
A crafty use of long pieces of wool to make a scarf.
What dentists battle on a daily basis
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.