Mix the crumbled cake with the buttercream frosting until well combined and crumbly but able to hold together when shaped.
Roll the mixture into small, even-sized balls about the size of a golf ball and place them on a baking sheet lined with parchment paper.
Insert a lollipop stick into each cake ball, pushing about halfway in, and chill in the refrigerator for at least 30 minutes to firm up.
Place the chilled cake pops in a holder or stand and dip each into the melted chocolate, tapping off excess to create a smooth, shiny coating.
Set the coated cake pops on a cooling rack and let the chocolate set completely, about 15-20 minutes.
Use a piping bag or a small brush to add red-colored candy or melted red chocolate around the edges of the eyes for a bloodshot effect, and create bloodshot lines by piping thin red lines across the eyeballs.
For the eyeballs’ detailed appearance, add small dots of contrasting colored chocolate or icing to simulate blood vessels and give the monster eye a creepy, textured look.
Allow the decorated cake pops to set for an additional 10 minutes, ensuring all decorations are firm.
Enjoy your spooky, creepy eyeball cake pops, perfect for Halloween parties or a fun baking activity with kids.