This is a fun and fascinating way to create unique paint designs on paper for cards and decorations. The process works by having the paint sit right on the surface of the water, so that it can easily get picked up by paper.
Note: Water marbling is definitely a trial-and-error type of process, so feel free to try different ratios and materials to see what works best!
Mix hot water and methyl cellulose in a large, flat container with whisk, using enough so that the water fills the container about 1-2 inches high. I used about 1 tablespoon of methyl cellulose to 4 cups of water.
It’s important to get your paint to the right consistency so that it can easily float on top of the water. I added a small amount of earth pigment to walnut oil in about a 1:8 ratio (enough for the oil to have color, but not so much that the consistency of the oil changes).
Try what papers you have on hand but I had the most luck with some scraps of textured cardstock. I set the paper onto the paint and let it sit for a few seconds before carefully picking it up. (Wear gloves if you don’t want your hands to get messy!)
Let the paint settle onto the paper for several minutes, then carefully run your paper under lightly flowing water to remove any excess paint or thickened water. Let your final design dry for a few hours, then, voila! Feel free to use your water marbled paper in other crafts and projects!