I decided to have a little play around with my nail art pen on one of my nails, and came up with this cute checker board effect....
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I first painted my nails with the Barry M polish
I then painted 4 black lines down and 6 across (you can also use black liquid liner if you haven't got a nail art pen)
Finally I filled in each square alternately in black
Simples.......
I think I'm loving nail art on one finger at the moment, whats your favourite pattern?