Use your nondominant hand. I listened to "Green fields of France" and "the Band played Waltzing Matilda" and the theme for today was found: Grief and war. I painted this with my left hand... I remember both my grandfathers used to paint with (and favored) their left hand (however they had to learn to write with the right hand in school).
Next weekend I'll attend a workshop about grief and wartime children, I guess this triggered some thoughts...