For violet cupcake, pipe tip 12 balls on cupcake top in violet buttercream, building up at center. For eyes, roll two 5/8 in. balls of white fondant. Roll two 1/4 in. balls of black fondant for irises; flatten and attach. Cut two small dots of white fondant for highlights and attach. For eyelids, roll out white fondant very thin; cut a 1/2 in. circle, then cut in half. Attach one half for one eyelid. Position eyes and insert arms.