Anatomical elements make such interesting pieces of jewelry. Be they hearts, hands or even brains!
Between the many folds of the cerebral cortex and the brain stem ready to connect to the spine, this magnanimously detailed brain pendant looks like you could have just removed it from a person. Only to then shrink it to fit into the palm of your hand. Then adding it to a chain or cord to make an ingenious (pun intended) necklace.
You could even add this to one of your art dolls. Maybe even make a scarecrow to give it to!
The pendant measures 1-1/2 inch high by 7/8 inch wide by 7/8 inch deep (37 mm by 22 mm by 22 mm).