Make fudge. Prepare fudge mixture following recipe directions. Add 1 tablespoon each green and red Batter Bits to mixture. Pour mixture into pan. Chill until firm, about 2 hours.
Cut and decorate squares. Use knife to cut fudge into squares, 1 1/4 in. Melt remaining white Candy Melts candy according to package directions. Use melted white candy in cut disposable bag to attach one icing decoration on each square. Let set, 3 to 5 minutes.