I bought some small thin metal sheets and a punch set from Amazon. Made a couple of copies of my ledger recovery phrase and then split them into 2 pieces which I keep in different locations.
That was pretty creative indeed but splitting it into two, and hiding them from different places is not ideal for me since you got a lot of chance in losing one of them or worst both of them. I'd rather do it on a single metal sheet, leave a blank character which I will memorize for my whole life so if it was found by someone else he cannot access it immediately 
Having the words punched into metal makes me feel a lot safer than having them written on paper!
Safer than writing them on a paper until it gets rusty and you can barely see what you punched in there haha. I hope you did not use an ordinary metal for that, a stainless steel is preferable.