how can i create an icon like http://i32.tinypic.com/9glxtt.png with the blurring and, it seems like sketching or some type of filter? i have no clue. please help!

i got the icons from this persons journal: http://www.insanejournal.com/allpics.bml?user=greene if people need to see more examples of how i want it to be. thanks!