File this blog post under 'Jill has freakishly comprehensive knowledge about bizarrely specific subject areas'.
Also: pretty pictures! Look at that carving!
So given that people liked my Why Are French Braids Called French Braids? and What Do They Call French Braids In France? posts, (and my original post on this topic being lost to posterity) let me tell you about the most wonderful (and probably oldest) hair accessory in the world: the hair stick, also known as a hair pin or a hair bodkin.