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I`ve been wanting to try water marbling for a while but since it takes a lot of time I`ve been putting it off. If you Google: "Water marbling tutorial" there will be many sources to show how to do it.
The results I got were a bit messier than I wanted but I still like the way it turned out. I tried to go for more Spring colors by adding the pink and yellow but it`s very faint.
It`s best to have a light base color so the marbling will show on your nails better.
It can get very messy so set up a little station first with paper towels and all the tools needed.
(Images are mine.)