Thingiverse user AprilStorm has produced a 3D-printer-friendly version of Boba Fett’s EE-3 Carbine Blaster Rifle from the Star Wars series. It was designed principally to be used for prop use by charitable organizations such as the 501st, however it’s also under Creative Commons non-commercial license, so as long as you give credit where credit is due (and don’t mind assembling the components), you can print out the design yourself.