The Hopkinton Center for the Arts will host a free, kid-friendly New Year’s Eve event on Dec. 31 from 4-6 p.m., both inside and outdoors at the HCA. The drop-by event will include a winter craft, wacky hair art, balloon twisting, an ice sculpting demonstration, music, hot chocolate and cookie decorating. There will be a special 10-second countdown to 2023 at 5 p.m. and again at 6 p.m. Registration is required via hopartscenter.org.