Yeah, that's a good stick. Assuming it's sound, it wouldn't take too much work to make it really nice. Carefully trim the branch remains and knots, sand it down so it's nice and smooth, spray on some lacquer to make it shiny, leather wrap the handle and you've got a fun cudgel. Or just trim and sand and you've got a nice fetch stick for your dog to mangle.
You could get really fancy by carving in the sections between knots before lacquering.
You could get really fancy by carving in the sections between knots before lacquering.