This would be a fitting weapon for the time period. http://3.bp.blogspot.com/_JiZFxBMGYlg/TIEFjhbxdPI/AAAAAAAAAUE/-3kR80l2YHk/s1600/Book+Release+13.jpg Can use wemp fiber to make twine and leather to put the rock in. Rockshards to make ammo. Proper Technique You want to do this? I want to do this.