Preheat oven to 375 degrees fahrenheit. In a large bowl, sift the cake mix with wire whisk to remove any lumps, mix in colored sprinkles. In a separate bowl whisk together eggs and oil. Combine wet and dry ingredients together with a wooden spoon. Shape dough into 1 inch balls, place two inches apart on a parchment lined cookie sheet. Using the palm of your hand, flatten each ball into 1/4-inch thickness.
Bake at 375 degrees Fahrenheit for 6 to 8 minutes or until edges are light golden brown. Cool for 1 minute on cookie sheet. Transfer to cooling rack
Frost cookie while still warm. Immediately sprinkle each cookie with colored sprinkles. Let cookies cool on a cooling rack before storing. Store in an airtight container.
Note: if the dough is too tacky and soft, refrigerate for a couple of hours before using.