They worked on the Changeling morph effect, constructed by Dennis Blakey first seen in "Emissary" , winning him an Emmy Award. They also worked on Odo's transformation into a spinning top in "Shadowplay" , the Changeling sea in "The Search, Part I" and "The Search, Part II" , Odo's morph in "The Abandoned" , the morphs in "Heart of Stone" , Odo's "melting" in "Distant Voices" and several Changeling effects in "The Adversary" , including the popular neck breaking scene involving Dennis Madalone. The Changeling morphs, were predominantly worked upon by Carl Hooper, after original designer and creator Blakey left VisionArt, halfway through the first season of Deep Space Nine.