There are several ways to make nine-pointed stars out of paper. You can paste together three paper triangles, or create a triangle template and use it, rotated three times, to trace out a nine-pointed figure onto another sheet of paper. Our favourite method, though, is one that we learned from friends in Vietnam, which relies only on folding, similar to origami. This video describes the folding process step-by-step. The nice thing about this method is that you can easily take things a step further to make beautiful nine-pointed snowflakes.
You can also download a printable guide to help you make your stars and snowflakes!