In a large bowl, mix together the cake mix, vegetable oil, eggs, and vanilla until smooth.

Add the three types of sprinkles and stir until well incorporated.

Chill the dough in the fridge for 30 minutes.

Preheat oven to 350°F and line baking sheet with parchment paper.

Scoop the dough into balls and place on the prepared baking sheet.

Add more sprinkles on top of each dough ball.

Bake for 8 to 10 minutes until golden around edges.

Cool on a wire rack and serve warm or at room temperature.