For my base, I used Dollish Polish Zombie Flesh. I first picked up this polish back in summer 2012. It still is as great of a polish years later.
Next I added red strips down my nails to represent blood. I used a red jelly polish here so it would seem more blood like.
Finally I added some black stitches. They don't have to be perfect :) I topped it all off with a fast dry top coat of course.