Make candy face. Melt black Candy Melts candy according to package directions. Use brush to paint eyes, nose and mouth in skull portion of mold with melted black candy. Chill until firm, about 5 minutes. Melt green, yellow and white Candy Melts candy, separately, according to package directions. Combine melted green, yellow and white candy to make green shown. Fill face portion of mold with melted green candy. Tap to settle. Chill until firm, about 10 to 15 minutes. Unmold.
Make sandwich cookie dirt cake. Place chocolate sandwich cookies in zip-close plastic bag. Use rolling pin to make fine crumbs. Prepare chocolate pudding mixture according to recipe directions.
Fill treat pops. Spoon a layer of cookie crumbs, about 1/4 in. thick, into treat pop. Position bone sprinkles against side of container. Use tip 2A and pudding mixture to pipe a layer 1/2 in. thick. Add another layer of cookie crumbs, sprinkles and pudding mixture as above. Position candy face against side of treat pop. Continue adding two more layers. Cover top of container with cookie crumbs and bone sprinkles. Insert hand icing decoration.
Adding color details to candies makes them more realistic and much more fun! For large areas of color, it's best to paint the melted candy right in the mold before the whole candy is molded using a decorator brush. Or, for very small details like vines, mouths and messages, melted candy should be piped onto molded candies using a parchment bag with a small hole cut in the tip.