Answer:
Even if you throw it away, it still comes back.
It is a symphony of noise, It can produce both grief and joys, It is inspiring and grand, Made by a person or a band.
If you are unsure how to use one then just ask a flight attendant.
Tear one off and scratch my head, what once was red is black instead!
Very helpful if you intend to go gently down a river.
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.