As a kid growing up in poverty in rural Bolivia, Roly Mamani built his own toys.... That's where my friend Roly and his brother found me," Matha told AFP. Mamani's brother Juan Carlos is a physiotherapist, who helps with the patients' physical rehabilitation. Matha said the prosthesis helped him regain his self-respect.... He now plays the guitar to earn a living.He said he used to" feel people looking at me and laughing....