raised salt painting: create design with glue, cover glue with table salt. Touch watercolor brush on salt, without smearing and watch color be absorbed by salt. Let dry. This looks fantastic. So, inverted rock salt painting.
Painting with Watercolors, Glue and Salt. This looks fun! Use canvas or Water color paper, and paint with watercolors by using brushes. Drizzle clear Elmers glue all over the painting, then sprinkle kosher salt around the painting