1. Heat oven to 375° F. In a large bowl, stir cookie mix, flour, melted butter and egg until soft dough forms. On a floured surface, roll dough into 1/4-inch thickness. Cut into desired shapes with 3-inch cookie cutters. 
2. On ungreased cookie sheets, place cutouts two inches apart. Bake for 7 to 9 minutes or until edges are light golden-brown. Let cool for 2 minutes. Transfer to cooling rack. Let cool completely, about 15 minutes.
3. In a double-boiler, melt chocolate chips with shortening. Dip half of a cookie into chocolate. Place on a wire rack set over a cookie sheet (to catch drips and sprinkles). Immediately add sprinkles onto the chocolate. Repeat with remaining cookies. 

Calories: 261, Fat: 11 g (4 g Saturated Fat), Cholesterol: 16 mg, Sodium: 113 mg, Carbohydrates: 39 g, Fiber: 0 g, Protein: 2 g.