I needed a nice frost effect and couldnt find anything appropriate (well anything that is completely free and usable for commercial design) so i approximated it myself with this brush. I discovered that frost basically looks like pine needles, found a pine needle image, and set this up.
Have fun with it, and use it for whatever you want.
 added a second brush to the set.
Also, thanks to all the people who dl and fav my brush! I love you all!!!! (except for that one guy... ya know who you are)