Preheat oven to 350°F (175°C). Grease a baking pan and prepare the cake mix as directed, combining with eggs and melted butter until smooth.

Bake for 25-30 minutes. Allow to cool completely before crumbling into fine pieces in a bowl.

Gradually mix in frosting until the mixture is dough-like and can be rolled into one-inch balls.

Chill the formed cake balls on a lined baking sheet for at least one hour.

Melt chocolate melts until smooth; dip each chilled ball halfway in chocolate and return to the sheet. Add sprinkles while the chocolate is still wet.

Let set completely before serving or storing.