Nutcracker Placoderm 2025. A customer asked me if I could make a powerful nutcracker that would handle his extra hard nuts! And this is the result! Forged from an old balcony railing and named after a group of prehistoric armored sharks with powerful jaws known as Placoderm. This is the kind of nutcracker that you have to talk to the kids about that its forbidden to use unless an adult is present!