[Source] A feather boa was a fashion accessory. At some point during his smuggling career, Roark Garnet was imprisoned. The cell's other occupants were a guard who was assigned to keep an eye on him and a droid named M-3PO. Because he was restrained, Garnet instructed M-3PO to strangle the guard with a feather boa. Though the droid protested the use of such a device to "attack" a sentient being, he relented and proceeded to perform the task, which was ultimately foiled by M-3PO's politeness.