Place chocolate frosting in a piping bag fitted with an open star tip. Ice the cupcakes with the frosting creating stars. Allow frosting to dry slightly and gently press down any pointed peaks.
Press two candy eyeballs onto the top of each cupcake.
Roll out black fondant and cut into strips (approximately ¾ inch by 2 inches.) Press white nonpareils into fondant. Lift fondant strips using an offset spatula and place at a diagonal over cupcake edge.
With remaining black fondant, pinch a small piece and shape into a tiny ball for the nose. Place one nose under the eyes on each cupcake.
For Princess Leia:
Ice cupcakes with vanilla frosting, creating a flat surface.
Place chocolate frosting in a piping bag fitted with an open star tip. Create a hairline with the chocolate frosting.
Press two candy eyeballs onto each cupcake and a heart sprinkle, placing each to form Leia’s face.
Attach a donut to each side of the cupcakes using toothpicks.