Meet Mogees: a smart kit that turns anything into a musical instrument, allowing you to produce music anywhere. Just stick the sensor to anything around you, and you are ready to play. The companion app can be used to recognize different types of hits on an object. You can also associate gestures to individual sounds.
The Mogees sensor captures vibrations that you create as you hit objects to create music. The system is plug & play, so you will just have to select your instrument to start playing. Yet another interesting Kickstarter project.