 The miniatures unit worked more than any other special effects crew, labouring for over 1,000 days.Creatures such as trolls, the Watcher-in-the-Water, the Balrog, the Ents, the fell beasts, the Wargs, the "mûmakil" and Shelob were created entirely with computer-generated imagery.Creatures would spend months of creation and variation as sketches before approved designs were sculpted into five-foot maquettes and scanned into a computer.