Take the barbie head and remove face-paint you don't like , such as lips , eyes etc.
If you've never painted a barbie before, it's best to leave the face-paint on and just trace it over with your paint.
Use the dremel, sand the head and drill holes whereever you want them to.
Also sand the neck and inside of the head so your usb will fit
attack the head with blue,purple and red paint. Smudge with your sponge to give it a bruise effect. Drip red paint over wounds
sew the lips shut by taking a needle and thread, poke it through the holes however you like.
let it all dry for about 10 minutes, then add details with paint, like little hearts and such. Be creative!!
stuff in your usb! if it doesn't fit make the hole bigger.
optional: style barbie her hair, give her piercings etc.
your barbie usb is now done! Yay!