I wanted to make a custom saddlebag for my bike because I couldn't really find exactly the shape and size I wanted.
But man this took longer than I thought... I didn't have a pattern or anything, I was designing it as I was making it sort of thing, with my bicycle on the side and trying it on for size and shape as I went.
Very thick leather, stitching was a pain with the thickest thread I have, I had to cut grooves and skive in a bunch of places to get the leather to fold, careful