This 18th-century violin makers shop by W. Foster Tracy, 1979, is a miniature built inside a full-size violin. It was on display at the Mini Time Machine Museum of Miniatures, Tucson, Arizona. All completed instruments and tools are fully functional in this model.
The Blackbird, also called the Black Stone Violin, is a full-size playable violin made of black diabase after drawings by Antonio Stradivari (Stradivarius), but with technical modifications to allow it to be played. The violin was conceived and designed by the Swedish artist Lars Widenfalk.