Perhaps cherry blossoms falling on the snow:

http://pic40.picturetrail.com/VOL269.../277869682.jpg
http://pic40.picturetrail.com/VOL269.../277869676.jpg
http://www.gloucestercitynews.net/.a...b117970c-320wi
http://www.kellysartandframe.com/ima...Blossom595.gif

Classic stuff. I know there's at least one company that makes cherry blossoms- I'll have to do some research.