Incorporating seashell and beach art is a great way to infuse a coastal nautical theme into your kitchen. Hang framed prints or paintings depicting seashells, starfish, or sailboats on the walls. Create a gallery wall with a collection of beach-themed photographs or coastal landscapes. Display decorative glass bottles filled with sand and seashells on the windowsill or open shelves. These art pieces will add a touch of seaside charm and create a focal point in your kitchen.