Watch Futurama: 7×17 Season 7 Episode 17

Forty Percent Leadbelly

Bender meets his hero, a famous folksinger who has been in jail 30 times, and wants to duplicate his success. This means duplicating his guitar too, which he tries to steal from a maximum-security prison, but fails, so instead resorts to 3D-printing technology to duplicate the guitar — again resulting in horrible consequences.