With a hammer we flattened the tops of soda bottles; with a nail, pierced them through the middle. A loop of wire strung them together into improvised chimes we could jangle. From house to house we took this itinerant music—voices singing off-key, moist breath powdering the frosty air: O come, O holy. Mostly, people opened their doors to tuck a coin or a sweet into our hands, before sending us on our way.