Unlock the builder in your child with Ann Arbor District Library’s Marshmallow Engineering Challenge. Kids, grades K-5, will use their imaginations to build structures using marshmallows and toothpicks. The challenge will be held at the Downtown Library in the Multi-Purpose Room.
Sunday, December 29, 2-3pm. 43 S. Fifth Ave., Ann Arbor.
734-327-4200. aadl.org. Free.