For Day #4 (even though today is technically Day #8) I wrapped my earbuds in candy-colored embroidery floss. This is an idea I stole straight off Pinterest. I love the way it looks, but it was difficult to manage twisting threads and wires as I wrapped.
Funny story: I can't use the little foam pads that go over the earpieces because I have a Siamese cat who pries them off during the night and eats them. His other favorite snacks are canned pumpkin, shower curtains, and the plastic packaging on paper towels.