If you're not a fan of metal, then test your mettle with wood!
"Some say rust and electronics don't go together. Some say you must properly ground old electronics. I say that having a ungrounded, old, rusty 1300 RPM propeller near my head is better than being hot!"
Better you than me, buddy!
From the submitter: "Because if you don't live life on the edge, you take up too much space!"
That is the most strangely profound thing I've heard in a while. Think about it!