1. Microwave vanilla coating on high until melted, about 1 1/2 minutes, stirring twice. Pour onto waxed paper; spread into a 16-by-8-inch rectangle. Let stand for 15 minutes.
2. Cut out 6 ghost shapes, using a lightly gresed paring knife. Use chocolate chips to make eyes and mouths.
3. Remove trimmings around ghosts. Lift each ghost from waxed paper and reserve trimmings.
4. Melt reserved trimmings; spread on the back of each ghost. Attach wooden skewers and let stand for at least 1 hour.