Step 1: Get some mussel shells.
The first step is to get some mussel shells. If you live by the ocean then this will not be hard nor expensive. If you are land locked then mussels can be found in the sea food department at any grocery store but they might be a little pricey. After you buy them, cook them up and enjoy a meal. Obviously you will want to save the shells. Try to keep the two shells of the mussel together. The final product will look nicer and have better symmetry if you keep the shells together.