Preheat oven to 375F

In a large bowl, combine cake mix, oil, and eggs, and beat until smooth.

Separate the dough in as many batches as you want colors.

Dye the dough using gel or powdered food coloring.

Wrap them in plastic and refrigerate for 30 minutes.

Roll tablespoon-sized balls in powdered sugar until heavily coated.

Place dough balls on a baking sheet lined with parchment paper.

Bake for 10 minutes at 375F.

Remove from the oven and place on a cooling rack to cool. As they're cooling, press the eye candies gently into the tops of the cookies.

Let the cookies cool on a cooling rack for 10 minutes before serving or eating.