This example of interactive digital dada is more like instant doodling. Each click produces a different random doodle but there is little contrast in design so less sense pf interaction. If you want a doodling theme then musical notation is an option you might consider. If you are a trained musician then you might find that you are soconditioned to draw notes for musical composition that you hear your doodles as you scribble.

Many adults are ashamed about not being able to draw and have a block to learning. Art therapists reassure that not being able to draw is an advantage in art therapy. But inhibitions about taking up a pencil can be quite strong. Even those who can draw often find it helpful play around with shapes and test ideas for design..