Preheat the oven to 350 degrees. Spray a 13x9 baking dish with non-stick spray and set aside.
In the bowl of a stand mixer, combine the vanilla cake mix with the water, oil and eggs. Mix on medium for about 2 minutes, until the batter is smooth. Scrape the sides often.
Transfer the cake batter to the prepared baking pan.
Bake in the preheated oven for 30-35 minutes or until golden brown and done in the center. Allow to cool completely.
Crumble the cooled cake and place in the bowl of a stand mixer. Add in the premade frosting and use the paddle attachment to mix for a couple minutes or until the cake and frosting are thoroughly combined.
Use a small ice cream scoop or similar to divide the cake ball batter and roll into balls. Place on a parchment lined baking sheet, plate or cutting board that can fit in the fridge or freezer to chill.
Let chill for about an hour, then begin the assembly.
In a medium, microwave safe bowl, melt the white candy melts until smooth.
Use a spoon or fork to dip the cake balls into the melted white chocolate, tapping the excess off on the side of the bowl.
Immediately place the eyeball decoration on top of the cake ball before the white chocolate sets.
Repeat with remaining cake balls.
Notes
Storage: Cake balls should be stored in an airtight container in the fridge for up to 3 days.