Ice Music - this band makes their instruments from ice and embeds lights inside. They've made cellos, violins, violas, guitars, xylophones, spherical drums, etc. They play classical, rock, pop, bluegrass, and more
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.