When did baby strollers get so high-tech? The Origami stroller power-folds itself open and shut at the touch of a button and has a built-in generator that charges the battery with every step you take.

Note: You can use any lightweight paper medium for this activity. A4 construction paper will suffice. Wrapping paper is easier to fold. Fold time: Diagonally fold a large paper rectangle (A4 or larger ...