If I could only wear one nail design for the rest of my life I think it would be a white and black/grey marble design!
For this pretty simple nail design I used an Urbanoutfitters white polish and 3 different shades of grey/black. I used the water technique combined with a alcohol spray to make the polish tear up and spread out, before dipping the white coated nails in the water. It is some kind of watermarble idea, but with a scattered around polish effect ;)
I topped it off with a bit of silver glitters and a nice glossy topcoat. In this design every nail will turn out differently, but that’s the cool thing about it :D