• Marimba (piano ranged Xylophone)
• Music box (pitch digitaly lowered)
• Kalimba (pitch digitally lowered)
• Harp
• stalacpipe organ (cavern organ)

Sorry, feel free to second any of the mentioned if you wanna discuss them, i just wanted to get out what im aware of

If you know of any super obscure ones please let us know, I collect them