During their careers, the members of Slipknot have developed their images, updating their uniforms and each member's mask upon the release of each album. The appearance and style of the masks do not usually differ significantly between albums; members typically maintain the established theme of their mask while adding new elements. Jordison, in an interview in 2004, said the masks are updated to show growth within each individual. Slipknot's members have worn special masks for specific occasions, most notably for the music video and live performances of "Vermilion" in 2004 and 2005 when they wore life masks made from casts of their own faces. In 2008, the band wore a set of large masks titled "purgatory masks" during photograph shoots before the release of "All Hope Is Gone"; in the music video for "Psychosocial" they are seen burning them. Shortly after its inception, Slipknot's masks were homemade, but since 2000 they have been custom-made by special effect artist and musician Screaming Mad George.