I put a very thin layer of tap water in a flat bottom tray (15inch diameter), drop 5 drops of Chinese bottled ink, I touched the tray very lightly so the ink water flew naturally a little bit.
I lowered a piece of my "classic" hand towel paper carefully and lifted it up. Turn over the side on top of a kitchen towel to absorb the water. It came out like this.
I would prefer a sharper edge in the marbling. Maybe I should make the water less running by cooking a starchy paste.
However, I'm happy with my first try.