The Great Candy Exchange is a chance for kids to wear their costumes one more time, win prizes, have their faces painted, enjoy balloon artists and live shows, free healthy snacks, and donate their leftover Halloween candy to the troops through the USO of Missouri. (Candy donation is not required to attend this free event.)
At the Healthworks Kids Museum from noon to 4 p.m.
More information and to register: hwstl.org.
Explore songs, finger plays, music and more during this Music & Movement class for ages 0-6. Some sessions are held in person at various branches of the St. Louis County Library. Some sessions are virtual.
Take part in a free yoga session just for kids! Children's yoga, presented by Complete Harmony, is held at the Brentwood Public Library on Thursdays from 9:30 to 10 a.m. Classes include stories, movement and mindfulness and are geared for children up to age 5. Bring a yoga mat or towel.
Come over to the dark side and meet the amazing birds that exist by moonlight. Owl Prowls are an opportunity for families to learn about owls from the naturalists at the World Bird Sanctuary.
Kids can work on existing gym skills, learn new skills or just play around during Open Gym at Miss Kelly's Gym in Creve Coeur.
Kids Art Night Out at Yucandu Art Studio features a new creative project each month, ranging from mosaics, to collage, printmaking, glitter, clay and more.