01 - Line a baking sheet with parchment paper for easy release and clean-up.
02 - Place white candy melts or white chocolate chips in a microwave-safe bowl. Microwave in 30-second intervals, stirring after each, until smooth and melted. If needed, incorporate coconut oil to achieve a thinner, fluid consistency.
03 - Dip each donut hole into the melted candy coating, using a fork or dipping tool to rotate and coat thoroughly. Transfer coated donut holes onto the prepared baking sheet.
04 - While the coating is still wet, press one candy-coated chocolate candy into the center of each donut hole to form the iris.
05 - Gently insert a mini chocolate chip onto the candy-coated chocolate to represent the pupil.
06 - Let the donut holes rest at room temperature or refrigerate them for 10 minutes until the coating is fully firm.
07 - Use a small piping bag or tube to pipe red gel icing in fine, squiggly lines radiating from the iris outward to simulate blood vessels.
08 - Embellish with sprinkles or colored sugars as desired for extra monster effects. Arrange donut hole eyeballs on a platter for a festive presentation.