In large bowl, stir cookie mix, flour, melted butter and egg until soft dough forms. On floured surface, roll dough 1/4-inch thick. Cut with floured 3-inch heart shaped cookie cutter. On ungreased cookie sheets, place cutouts 2 inches apart.
Bake 7 to 9 minutes or until edges are light golden brown. Cool 2 minutes; remove from cookie sheets to cooling rack. Cool completely, about 20 minutes.
In small bowl, stir food color into 1/2 cup of frosting to create desired color. Place 1/3 cup untinted frosting into small resealable food storage plastic bag; partially seal bag. Cut off tiny bottom corner of bag; set aside.
Turn cookies so pointed ends are up. Working with one cookie at a time, spread 2 teaspoons of remaining untinted frosting on lower third of cookie for beard. Spread generous teaspoon red frosting on upper 1/3 of cookie for hat. Squeeze bag of frosting to pipe dots to attach eyes and nose. Pipe to finish hat, pom pom; decorate with additional decorations as desired. (Use photo as guide.)
Decorate each cookie before starting another so frosting does not set. Let stand until frosting is set, about 1 hour. Store in airtight container at room temperature with waxed paper between layers.