After prepping you nail, paint 3 stripes of any colours you like. They don't have to be perfectly straight as you will be covering it later.
You can also just use 1 base colour on the whole nail if you prefer.
Step 2: After your base colour(s) is dry, lay down your striping tape in any direction you would like the final pattern to look. (I bought my striping tape on ebay, 6 rods of various colours for £1.89). You can also use regular scotch tape but I prefer striping tape as I'm too lazy to sit there and cut lots of very thin strips.
Step 4: Remove the striping tape, one piece at a time whilst your polish is still wet and you're done!
If any of you guys decide to give this mani a go, I would love to see what you create :)