1Heat oven to 375°F. Mix sugar, butter, vanilla and egg in large bowl with spoon until smooth. Stir in flour. Divide dough in half. Stir red food color into one half of dough; stir green food color into other half of dough.
2Shape dough into 1 1/2-inch balls, using some of each color of dough for each ball. Place balls 2 inches apart on ungreased cookie sheet. Insert wooden stick into side of each ball. Press bottom of glass onto dough to grease, then dip into sugar; press on balls until 1/4-inch thick. Press candy sprinkles into dough or sprinkle with colored sugars.
3Bake 9 to 11 minutes or until slightly firm and edges are light golden brown. Cool 1 minute; remove from cookie sheet to wire rack. Cool completely.