1. In large bowl, combine brown sugar and butter; beat until light and fluffy. Add vanilla and eggs; blend well.
2. Lightly spoon flour into measuring cup; level off. In medium bowl, combine flour, oats and baking soda; mix well. Add to brown sugar mixture; blend well. Cover with plastic wrap; refrigerate 1 hour for easier handling.
3. Heat oven to 375*F. For each bear, form two 1 cm balls and one 4 cm ball. Place the large ball on ungreased cookie sheet; place smaller piece s on top to form ears. Flatten dough slightly; crimp edges with fork. Repeat with remaining dough, placing large balls of dough 8 cm apart on cookie sheets.
4. Bake for 7 to 10 minutes or until light golden brown. Cool 2 minutes; remove from cookie sheets. Cool 10 minutes or until completely cooled.
5. To decorate, use small round tip on decorator icing; pipe icing on each cookie for eyes and mouth. For nose, use small amount of icing to secure M&M o n cookie. Let icing set before storing. Store in lightly covered container.
2 dozen large cookies.