I usedmodels own RED ALERT and FEELING BLUE and a Yellow called BUTTERCUP by gorge at asda :]
You need water, needle, cotton buds and some tape to limit the mess.
i used plasters on a roll but i have used electrical tape before.lol
I used a white base coat so that i gave the colours the best chance of being bright.
Then i covered the skin around my nail leaving the nail exposed.
Then i carefully dripped some nail varnish in to the water.
Dont to it roughly or from too high up or it will sink.
When to droplet expands do the same with another colour in the centre.
Keep going till yu have a few lovely rings.
Now drag the needle quickly and smoothly through the varnish creating a pattern.
It will take a little while to get good at this but its fun.
(Sorry no picture of this step)
Now dip your finger in to the prettiest ared of the swirled varnish. leave you finger under the water and wait.
.. a few secs
Then use the cotton buds (q-tips) to gather up the varnish left on the water.
Now remover your finger and take off the plaster.
Now on to the next finger.