Music may creates fun and amusement that human may not. Sounds and melody of a ukulele proves the hypothesis among scouts. Uke for peace is a project that aimed to bring cheerful and happiness among scouts. The ukulele is a string instrument often associated with Hawaiian music. It belongs to the guitar family of instruments, and shares many similarities with standard guitars, including its basic shape and construction. A standard ukulele has four strings, its simplicity and compactness makes it easy to pick up and learn, even by beginners. Not only to share happiness, uke for peace is also a project to spread the ability to play the instrument and tightened friendship.