Windell has created a new free snowflake drawing program. He writes:

A new application to draw your own snowflakes and save them in PDF format. Clean, cross-platform, open-source, and able to generate closed-polygon vector shape output. Oh yeah.

…while there are some nice snowflake program out there, we didn’t actually come across any that were both (1) cross platform (2) open-source, and (3) able to export a vector drawing with a closed path. While many of the programs do let you save an image of snowflake design, that’s actually of limited utility. What you really want is a vector drawing so that the design has infinite resolution and is suitable for importing and editing in Inkscape, Corel, Illustrator, and so forth.

Vector Snowflake Application