But a needle and thread could.

WSJ: On Pins and Needles: Stylist Turns Ancient Hairdo Debate on Its Head

Acus has several meanings including a "single-prong hairpin" or "needle and thread, " she says.

WSJ: On Pins and Needles: Stylist Turns Ancient Hairdo Debate on Its Head

The last scrutineer pierces each ballot with a threaded needle through the word "Eligo (elect)" and places it on the thread.

NPR: The Papal Transition: An Overview