JWT Sydney and Collider created new commercial video and prints for Nestle’s "Club" used a technology called Ferrofluid art. The main campaign slogan – "Stir something deep inside". The inventor of this type of art is Sachiko Kodama. Mystery of Ferrofluid art is in unusual behavior of ferrofluid in the magnetic field. Ferrofluid is a liquid containing a very small ferromagnetic particles about 10 nanometers (0, 00001 mm).