I needed one, I made one. Used the trunk of a small tree that blew down last year; I think it’s some sort of cherry. The “arms” are from a branch. The cradle part is from higher up the trunk, the base needed to be a bit bigger, so I took it from nearer the bottom.
I sawed the log in half, a bit longer than it needed to be, then I used a big gouge to hollow it. Refined the shape with files and sandpaper. Sawed the branch in half, ran them across some 50-grit sandpaper to make them a bit thinner and flat. Rounded the tops on a disc sander. Glued on some leather, gave it a coat of linseed. Done.