Pins! They have pokey edges like needles. Doctors occasionally use needles for various purposes...What kind of purposes? To show off their favorite affiliations on their lab coats, obviously. Now it can be done with fashionable Plague Doctor style with the Plague Doctor Enamel Pin.
This 15" Plague Nurse plush wears their heart on their sleeve. Well, its A heart, probably not THEIR heart. That would be messy. And then we would have to wonder whose heart it is around their neck...