Billions of years from now, plants will have evolved numerous defence mechanisms to ward off hungry herbivores, but none as extreme as this hibiscus by Grant Davis. I love the perfect blending of organic and mechanical elements, which makes the creation look very realistic for a robot flower. The builder says this is practice outside the castle theme in which he usually builds. But with the new LEGO Nexo Knights series, the definition of LEGO castle may officially include robots now, too!