After a year of absence, I am being implored to build another Christmas layout. I usually use cotton batting for snow, but a few years ago I found a strange material at A.C. Moore. It was like a thick powder. IIRC, it was basically ground Styrofoam. It was much more realistic than cotton and was very easy to clean up. I haven't found it since and have no clue where to go. Anyone know where I could find it?