So basically what your going to need is
-white nail varnish ( I would suggest O.P.I but you can use whatever)
-12 strips of newspaper
First of all you need to paint your nails with a matt base coat, so you don't stain your nails and the varnish stays on longer.
Next paint the nails with a white colour varnish giving it two coats.
Then you need to dip your fingers in a small pot of alcohol then quickly press the newspaper over your nail hold it there for 30 seconds.
Once you peel the paper carefully off your nail you need to wait a minute of so for it to dry.