10. The Sheng
Yes, it looks like a beefed-up grenade launcher, but the sheng is actually a Chinese reed instrument that dates all the way back to 1100 BCE. It merits a mention on the list for its incredible history alone, but the real clincher is the sheng's unmistakable sound. This video of an expert player nailing the Super Mario Bros theme—complete with coin sounds—will have you looking up sheng lessons in no time.