Silk Frost

[spyboy]

I've never seen this in the wild, but now I'll be looking for it :)

http://www.treehugger.com/files/2010/01/silk-frost-formations-an-incredibly-cool-and-weird-winter-wonder.php

[mtruman]

Wow - fascinating! Amazing how many different ways there are for water vapor to freeze.

[Charlie]

looks nice

[Snow Miser]

Looks really cool.