Experimental musician Diego Stocco has built a range of unique hybrid instruments for his Custom-Built Orchestra. They have names like Expiricello, Textural Flute, Luminopiano, and Glockenstrange. Here you see the Arcophonico.
I built this by using a tree branch I found on the street. It's an electro-acoustic instrument amplified with a pick up and a built-in piezo microphone. It has three sections, the bass with a fretted metallic neck, a 2 strings cello-like section and a vertical double bass string that can be played by pinching it. It can be played with a bow, a chop stick, small metallic bars or picks.
You'll find links to the music of each instrument and a video of the entire orchestra together at Stocco's post at Behance. Link
Previously: More from Diego Stocco