Have you ever folded up a piece of paper and cut a snowflake out of it? This is the 3D-printing version!
Press the "Open in Customizer" button to draw a wedge of your own unique pattern, which will then be mirrored and rotated to make a snowflake ready for downloading and printing. See the green triangle illustrations in the gallery for examples of where to draw in the square to make your snowflake pattern.
Please post a "make" if you create your own snowflake! Every one will be different and it will be great to see what they look like.
Read more about this design at Hacktastic:
SNOWFLAKE UPDATE 2015: This year you can create algorithmically-grown snowflakes from a random seed and use sliding parameters to control the style and form of the design of the snowflakes, at http://www.thingiverse.com/thing:1159436
Hacktastic blog: mathgrrl.com/hacktastic
Shapeways geekhaus store: shapeways.com/shops/mathgrrl