Line a rimmed sheet pan with parchment paper and set it aside.
If you have not already baked your sheet cake, do so now. Allow at least 15 minutes for the cake to cool before continuing.
In a large mixing bowl, break up the cake into large pieces. Using a wooden spoon or electric mixer, blend the cake into small crumbs.
Add the vanilla frosting and mix again until fully incorporated. Place the bowl in the fridge for 15 minutes to allow the mixture to set up.
Using a 2-tablespoon cookie scoop or your hands, portion and roll the cake balls onto prepared sheet pan. Place in the fridge while you prepare the dipping chocolates.
Place the chocolate wafers in one bowl. Separate the white chocolate wafers equally among two bowls. Melt the wafers as directed on the packaging.
Add 4 drops of orange gel coloring to one of the white chocolate bowls and stir to combine.
Dip the cake balls into the melted chocolates to coat, using whatever color(s) or design you want. While the chocolate is still warm, gently press two candy eyes onto each ball.
Place a wooden skewer into each cake ball, set them back on the cookie sheet, and place in the fridge until chocolate is set (about 15 minutes). Serve and enjoy!