LINE baking sheets with wax paper.
PLACE morsels and shortening in large, microwave-safe bowl. Microwave on MEDIUM-HIGH (70%) power for 1 minute 30 seconds; STIR. Morsels may retain some of their original shape. If necessary, microwave at additional 10- to 15-second intervals, stirring just until melted; cool slightly.
PLACE lollipop sticks on prepared baking sheets, spacing about 6 inches apart.
SPOON melted morsel mixture halfway over lollipop sticks into ghostly shapes. Decorate with candies. Refrigerate for 15 minutes or until set.