The search for new techniques and concepts that they had begun en elBulli, at the beginning of the 1990s, was not restricted to food, but also included devices and utensils which they used to modify products and to transfer their ideas to the table. This is why collaboration with industrial design was required, which to date has given very useful results. In 2001, they began to work with a Swiss industrial designer living in Barcelona, Luki Huber, who since then has not only suggested new utensils for serving food (slurps, pipettes, spoonfuls, etc.), but has also helped to solve certain problems involving preparations. This cooperation with other creative minds has undeniably been one of the major factors in their work in recent years, and from 2005 onwards has become embodied in the Faces project, in collaboration with top designers.