Although i thought that i'll find more examples about mechanical painting on youtube, i hadn't too much luck. The one from the left has been used by the artist, not just as an experiment and i must say that i very much like his horizontal stripe series of works.
Like a small world, that it actually is - kefir grain has many cultures living on it, it changes milk that it comes in contact with into a wonderful drink that heals our bodies, look at it closer:
it is red because we used it to make water kefir drink with redcurrant (the red berries i am mentioning). Milk grains are otherwise white-yellowish.