Use these upcycled holiday card boxes to package tiny gifts, decorate your tree or build homemade advent calendars. My grandma taught me how to make these small origami boxes when I was a little girl.

If you squeeze a box of cereal just a little bit, you’ll instantly hear the crunch of fiber flakes and stale marshmallows. But if you smashed down this origami donut, created by Bin Liu, from the ...