The Hawaii Children’s Discovery Center is celebrating its 20th birthday with special activities from 10 a.m. to 12:30 p.m. Dec. 15. If you the little ones still need to make gifts for their loved ones, sign up for the DIY Keiki Club from 10 to 11:30 a.m. Dec. 15 where kids ages 5-10 can make a candy cane sugar scrub ($15 members, $20 nonmembers). Call 524-5437. www.discoverycenterhawaii.org/events.html