In the movie the kids carried little paper bags of flour. Also, there's a scene where a little girl (Margaret O'Brien) is riding with the ice man (Chill Wills) in his horse-drawn wagon and they discuss the correct pronunciation of "St. Louis." One says Lewis, the other Louie, I forget which. Ironically, Chill Wills went on to play the voice of TV's talking horse, Mr. Ed.