I just adore at hat pin! Partly for helping to keep a hat in place, but, if I'm honest, largely for adding a decorative touch of personality.
I make many of my pins in a choice of sizes. The longer lengths are perfect as classic hat pins, veil pins or scarf pins. The shorter lengths make a wonderful lapel pin or for adorning your button hole. I also often wear one decoratively, just as I would a brooch.