Watch How Tinsel is Made
Although it seems like tinsel spontaneously generates each December, it does actually come from somewhere. A machine that looks a little bit like a cotton candy maker takes several sheets of metallic plastic and shreds them into tiny fringes, wrapping them together to create the sparkly garland you see in shopping malls. You can watch this machine at work as it quickly creates some blue and red tinsel.
[h/t: Present and Correct]