I tried to "grow" grass-like sticks from a stone block by using acid: I made a small basin of wax on the surface of the stone whilst also covering certain spots with wax. Then I poured acid into it. A sheet of paper was laid under the stone after each phase so that the base position of the stone remained the same on the video. Thus, rather than eroding, the stone appeared to grow. Unfortunately the conditions were not satisfactory for me to create an independent work of art, and so the result was more experimental than I wished it to be.