From Hawaii to the Caribbean, conch shell horns celebrate the unique cultures and traditions of the world's most exotic islands. "How to Make a Conch Shell Horn" walks you step-by-step through the process of making your own conch shell horn. From preparing your shell to how to blow your new horn, it's all there. With just a few simple tools, you can have your own hand-made conch shell horn in about an hour. And it's more than just a conversation piece. Conch shell horns are Coast Guard-approved as marine signaling devices.