An apron may be too thin unless you can get one thick enough. Bison leather is real thick I have one jacket of that but its heavy. but I guess you will research.
Another idea might be a leather jacket with removable arms. (or even a motorbike jacket with removable arms, they are padded too) I have one I use to protect me from falls horse riding (I cant be using the horse riding armour. that's a bit embarrassing as only kids use it in the uk). I don't know if detachable sleeves is still available though. it was the fashion back in the day.
Oh, wait, it is
https://www.google.com/search?q=leat...chrome&ie=UTF-
Edit, yes just saw the Hugsplox blacksmiths apron post, that looks a good idea.
Not as cool as a leather jacket though![]()