Idiophones [1]

1. Struck idiophones [11]
   1. Concussion idiophones = clappers [111.1]
      • Bones
      • Spoons
   2. Percussion idiophones [111.2]
      • Xylophone
      • Metallophone (Glockenspiel)
      • Bar chimes
   3. Shaken idiophones [112.1]
      • Vessel rattles such as maracas or our pebbles [112.13]
   4. Scraped idiophones [112.2]
2. Plucked idiophones = lamellophones [12]
   • Sanza/Kalimba
3. Friction idiophones [13]
   • Nail violin

Links

Wikipedia (en): Idiophone.
Wikipedia (en): List of idiophones by Hornbostel–Sachs number.
Txt document: Hornbostel-Sachs classification of idiophones. If you don't know what to (re)invent, here are lots of ideas ;-)