This is more of a tool not really a "weapon" but seems to fit this category. My 11 year old son found a an old rusted and abused roofing hatchet head in my father-in-law, his grandfather's, garage while we we over watching the Super Bowl. He brought it home and I gave him an old hickory splitting maul handle I broke. He cut it down to the length he wanted, stained it and sealed it with Tung Oil. I helped cut down the top to fit the head. He sanded it down to fit, I showed him how to use a coping saw to cut an eye for a wedge. I did the initial grinding to restore the edge but he finished it up and sharpened it. He's very proud of it.