 It also dried very quickly, which made it a very practical material.Furthermore, the shiny black colour was associated with Miike's coal and the life of workers, which were the main audience Grroup Kyushu wished to connect with.They also occasionally covered their work in urine and excrement, and have the dubious honor of being the first group to ever be forbidden from exhibiting at the famously permissive Yomiuri Independent exhibition (1949-63).