I start with applying a nail whitener then a nail strengthener. Add a curved line at the base of the nail. I use a dotting tool but a nail art pen would also work.
Next, apply your base colour over the rest of the nail, be careful not to go over your line too much, but if you do you can clean it up at the end.
Finish off by adding some random dots, eyes and a clear top coat.
Finished :)
Products used:
Rimmel Whitener
Rimmel Stronger
George nail varnish - be mine
Barry M -Blueberry Ice Cream
Opi - Mod About You
Opi - Do You Lilac It?
China Glaze - Pure Elegance
Barry M - Baby Pink
Barry M - Cyan Blue
Illamasqua - Phallic
Barry M - Pale Purple
Illamasqua - Baptiste
17 - Pizazz
Rimmel 3 in 1
Dotting tool buy here
I got this idea from a youtube video, you can watch it here: http://www.youtube.com/watch?v=XNxhjRsPouw