Backwards, I mean to take great pleasure. Forwards, I have class :: three of them :: and make work easier.

I have one tooth unlike the three of Lord Poseidon's weaponry. My name: An angelic instrument ended like a typhoon. Yet Ahab, I failed to kill the white whale, guess me for a boon.

I have a string, a handle, a frame, and a paper spread over me. I fly

It holds no heat of its own, yet rises and falls with yours, and speaks only in numbers when asked how warm the world has become. What am I?

I am always invited to feasts, but I never eat. Although I never celebrate, I am the first to suffer the excesses. I arrive looking good, but am often discarded without a second thought. I handle your messes and am ruined so you don’t have to be.