-1 Bobby Pin
Paint each one of your fingernails a different solid color.
Paint a yellow circle on both of your thumbs.
Paint small black triangles on the bottom of your colored nails.
Fill in the rest of the area on your thumbs with black polish.
Bend your bobby pin to create a dotting tool.
Dip your new dotting tool into the polish to create eyes on your colored fingers. These make the ghosts, and you are done!