Water Marbling Nails

I love looking around on Youtube for inspiration & ideas, there are so MANY creative people uploading tuts there. I tried water marbling my nails, my first try-in lavender, purple & gold. I painted 2 coats of plain white polish first, then I taped the nails of my left hand only-my 1st MISTAKE! As clumsy as it might feel I suggest taping BOTH hands before ANY marbling is done. I used a paper cup, an orange stick, tap water, scotch tape, & nail polish: opi revlon milani. I discovered I liked marbling 2 nails at once, it goes faster & uses less polish.