Japanese Luck Charm: Koinobori and Celebrate Children's Day What better way to wish someone well than with a traditional Japanese charm! This white and red charm is decorated with fish flags often displayed for Children's Day in Japan! With a strap that can be attached to your cellphone, handbag, belt buckle, just about anywhere you would like to have it to carry your luck with you. This charm also comes with a small golden bell. Charm is about 2-inch. Its a great gift to wish a friend or a loved one the best of luck.