Anime badges, known in Japan as **缶バッジ** (kan-bajji), are highly collectible items especially popular among anime and idol fandoms. These badges are often adorned with character art or idol images, making them ideal for fans to wear, display, or trade. They add a personal touch to bags, clothing, and accessories and serve as a unique expression of fandom.

Their popularity stems from their accessibility and the variety of designs available, allowing fans to showcase their support for favorite characters or idols in a customized way. 

Special edition badges, collaborations, and exclusive releases from events like Comiket or idol concerts further enhance their appeal, making them must-have items for dedicated fans.