The Hopkinton Center for the Arts will host a free, kid-friendly, drop-in New Year’s Eve on Dec. 31 from 4-5:30 p.m. Sponsored by Middlesex Savings Bank, the event will include DJ Mike spinning tunes and leading fun games for children, along with a balloon artist, hair art and airbrush tattoos. There will be a special 10-second countdown to 2024 at 5:30. Registration is available at hopartscenter.org.