Oh, now I get it. They are supposed to be music notes – ahhhhh!
Otamatone, the cutest instrument toy that produces the weirdest sounds yet. Press and slide on Otamatone’s to create some Theremin like sounds. Squeeze Otamatone’s mouth to create vibrato effect. Very straight forward to use, but definitely a one-of-a-kind instrument that is [...]

I’m just happy that things kind of changed these days with medical instruments.
Skull Saw

This hand-cranked saw’s blades were used to cut through sections of the skull, allowing for access by other instruments.
Circumcision Knife

Ritual circumcision is performed around the world in varying extents and for varying reasons, but few instruments used in the process [...]