How to Cast a Sharp Bronze Ninja Shuriken from Scrap Metal 🔥

Full video on channel - here I cast a sharp and shiny bronze shuriken ninja star in my backyard foundry metal furnace and throw it, testing it out on a water jug and a watermelon. It goes right through the watermelon! #ninjastar #oddlysatisfying #moltenmetal #sandcasting #metalmelting