|Applique pins are tiny 1/2 inch long pins. They are normally used to pin an applique in place for hand sewing, so your sewing thread isn't caught on the pins so easily.
I finished a quilted wall hanging and decided to try these pins as "nails" to hang it, right through the fabric. It worked great! These make such tiny holes in the wall, that they can be patched with toothpaste later [old trick]. Here is a good tip for 'nailing' these...pick up the pin with needle-nosed pliers, close to the head of the pin. Use the pliers to hold the pin while tapping with a hammer...no hurt fingers.
These would work to hang anything that's fairly lightweight.