To decorate for our winter party before the semester-end break, we made paper snowflakes in art class at school.
Being the geek that I am, I made a mobile from the fractal of the Koch snowflake, which starts from a single equilateral triangle, and keeps adding triangles onto the triangles. The mobile is made from the first three iterations, cut out as nested pieces, plus the background to the largest, which is trimmed as a circle.
(The mobile’s crossbar is the metal edge that came loose from a ruler; it’s being employed in this manner to prevent misuse by unruly students.)
More on the Koch snowflake: http://en.wikipedia.org/wiki/Koch_snowflake