Costume shops are retail stores that specialize in selling costumes and accessories for various occasions, such as Halloween, theatrical performances, and theme parties. They offer a wide range of items, including masks, wigs, and props, catering to both children and adults. Many shops also provide rental options for high-quality costumes. In addition to selling costumes, some costume shops offer custom design services, allowing customers to create unique outfits. These shops often stock items for popular characters from movies, TV shows, and video games, making it easy for fans to dress up as their favorite personas.