Set your cardstock on a tray or covered work area. We cut our sheet of cardstock into quarters to make four smaller paintings (4.25 x 5.5 inches), but you can also make your painting on a full sheet.Add purple, blue, and white paint to a palette or into small dishes.
Use a paintbrush to add lines or splotches of your first colour (purple, in our case) to the cardstock.You can paint them horizontally, like a winter horizon, or just add them on randomly.
Without washing your paintbrush in-between, add a second colour (blue in our case) to the paper.
Fill the rest of the paper with white paint. We also painted over some of the previously painted areas to blend the colours and create lighter shades of blue and purple.
Step 3: Add glue to the painting
Without waiting for the paint to dry, squeeze glue over top of the painting. You can add the glue in a specific pattern or just put it on randomly.
Step 4: Sprinkle epsom salt over the glue
Sprinkle epsom salt over top of the wet glue.
Let the paintings dry for about 2 hours, and then shake off any extra salt.