These are souvenir keychains from various regions of Japan. They're kind of antique. Maybe they're fashionable in a roundabout way. Even if you haven't been there, wearing one can make you feel like you have. If you have been there, or if you used to have one but lost it, you might feel nostalgic. They are in the kind of condition and quality you'd find at a flea market. Only those who don't mind this should purchase them.