Gather up everything. You will need: Polymer clay, a clay knife, a clay roller, a pair of earphones, some acrylic paint or nail polish, a hot glue gun, and either clay glaze or clear nail polish.

Roll out your clay fairly thin, about 1/8 of an inch or so, and cut so that it is as wide as your earphone is long.

Cut off a piece of the clay long enough to fit around most of the earphone's base, leaving a gap large enough to fit the cord through easily.

Cut out at least one more piece this size. You can make as many as you want though :)

Wrap the pieces of clay around the the earphone to give it a sort of "U" shape. I'll be referring to this piece as the base from now on.

Roll out your remaining clay, or grab some more if you need to, and start scratching out a design. Make sure that you'll be able to duplicate it...
(I was torn between making the butterfly wings, a knife going through my head, or a banana.)

Cut out your design and bake. (I used Sculpey III, so I baked it for about 20 min. at 275 degrees Farenheit.)

Let your clay cool and paint it. I started with a white base coat so that everything would show up well.

Finish adding any extra painting details then glaze. Let the clay dry completely, then glue it to the base across from the cord opening.

Wrap the earphone a couple of times with some electrical tape to hold the base on more securely.

Now sit back, relax, and enjoy the music! :)