you'll need red nail polish (or other color you wish for :P)

black nail polish, red art-pencil and black art-pencil.

1. you start with simple blood red fundation.


2. you do a kinda big round black dot on the center of the nail, and then a smaller part on the dots under-side thats gonna be the jaw of the skull. like this:



3. you do a cross with the black art pencil right under the "skull".


4. you do two small dots on each end of the cross



5. now you take the red art pencil and do two dots n the skull, for eyes.

done!! ;)