The Chicago Children's Museum has a new exhibit, Unboxed: Adventures in Cardboard, which is a celebration of the most universally loved toy: the cardboard box. We really love our toys, but this holiday season don't forget to hang onto your packing materials and get reacquainted with the humble box. The exhibit features an enormous mural, a towering Box Giant and a winding box maze. Visitors are encouraged to make their own cardboard constructions and enjoy the corrugated cube's fun and possibilities. Unboxed runs through May 5 at the Chicago Children's Museum. Families who can't make it to Chicago can create their own cardboard revelries and check out this video from the exhibit that shows what happens when you make a toy store that sells only boxes.