Here I've experimented with wax crayon, acrylic paint, oil pastels, pencils and watercolour paints.
I've tried a range of techniques: Rubbings with crayon, wax resist with watercolour, using an eraser to create patterns by removing areas of pencil, scratch-patterns with a craft knife over pastels and wet acrylic paint, printing with sponge and acrylic paint and printing with a piece of waste plastic and acrylic paint.
Using the eraser on the tonal pencil was more effective than I expected. This could be varied further with sharpened or shaped erasers and a range of different patterns. The wax resist was interesting as the paint left speckles on the crayon in addition to being resisted by the wax. Using a wider range of colour under the paint would be fun to try.
