From cnet.com:
It may look a little (or a lot) like a Klingon weapon, but this sleek 3D-printed object is actually a musical instrument — in fact, it’s a species of violin.
The differences aren’t just cosmetic. The traditional four strings have been reduced to just two, and the sweeping shape of the piezoelectric instrument’s body is a far cry from the curves of a traditional violin. The structures therein serve to amplify its acoustics in new ways.