Heat oven to 350°F. Lightly spoon flour into measuring cup; level off. On floured surface, knead flour into sugar cookie dough until well combined. Form pieces of dough into 3/4-inch, 1-inch and 1 1/4-inch balls. On ungreased cookie sheet, arrange 1 ball of each size in a row with smallest ball on top and largest on bottom, edges touching. Repeat with remaining dough to form 16 snowmen.