Create a stunning driftwood wall hanging for your garden using seashells and beach treasures. Start by collecting driftwood pieces of various sizes and shapes from the beach. Clean the driftwood by rinsing it with water and letting it dry in the sun. Once the driftwood is dry, arrange the pieces in a visually pleasing pattern on a flat surface. Use hot glue or a strong adhesive to attach seashells, starfish, and other beach treasures to the driftwood. You can also add small pieces of colored glass or ceramic tiles for an extra pop of color. Once the glue is dry, hang the driftwood wall art on a sturdy hook or nail in your garden. The natural textures and colors of the driftwood combined with the seashells and beach treasures will add a unique and coastal touch to your outdoor space.