We saved the best (or worst) for last. These are the ultimate zombie nails to scare anyone who catches a glimpse of them. This takes a bit more work than the others, but is still easier than it looks. You'll need to buy some cheap fake nails so that you aren't cutting your actual nail (that is never, ever a good idea). Using cuticle cutters or nail scissors, roughly cut the false nails before sticking them on. Then, using a sponge, dab both light and dark red polish onto the fake and real nail (where the fake one has been cut off) and over the cuticle line. Go over this with fake blood to make it look realistic. To get an even grimmer effect, dab on some red nail polish before adding the fake nail on to create layers of gory cuts. Ouch!