Melt the candy coating according to package directions being careful not to overheat the candy. If the candy coating is overheated, it will be too thick. If you accidentally overheat, add a small bit of shortening to help thin the candy. Do not add any other type of liquid though because it will cause the chocolate to seize and harden.
Using a spoon or fork, drizzle chocolate over half of each cookie. Tap the cookie with your finger or a clean utensil to help the candy coating move into a smooth, ghostly shape.
Insert two mini chocolate chip morsels (or mini candy eyeballs) for eyes.
Place each cookie on wax paper to set. Allow chocolate to cool completely before storing or serving.
Store in an airtight container at room temperature. The cookies can soften if stored in the refrigerator.