Heads up, am posting a few older designs/boring nails that I've had on my phone and dating them when I actually did them on here. Okie dokie.

Here we have a plain and simple design, sorry for the dreadful quality of photo.
It is simply Jay Jays' Black with OPI's Turquoise Shatter over the top.
Quick, easy and ultra effortless!
Just a couple of coats of the black until it's opaque and a thickish coat of the crackle.