pretzel salt snow

We used to call it bean bag snow. When my son was in the second or third grade he had a friend come over to the house to play. My wife was in the kitchen making dinner and she could hear them in his room laughing and having a good old time. She asked them what they were doing and my son answered "making it snow". Curiously, she went to see what the heck he was talking about and found out they had unzipped the bean bag chair and emptied it of it's stuffing. Millions, maybe billions of tiny Styrofoam ball everywhere and they looked just like graupel. Years later we got a bunch of graupel and that's when the weather guy on TV explained it.