Full Disclaimer: I am not the world's greatest CW operator. Unless I can give it my undivided attention I still struggle. However, I am slowly improving and I certainly enjoy it.
Recently I ran across the web site for QRPGuys. They have some interesting items in general but one that caught my eye was their Single Lever Mini Paddle. It's intended to be built into a project of your own, a kit, etc. but one look and it just spoke to me. Actually, it said "hack me"!