"Grassroots art" is a term describing art made by people with no formal artistic training . . . (usually of retirement age) using ordinary materials in an extraordinary way . . . and frequently creating a whole artistic environment around themselves, effectively making themselves part of the artwork. Mri Pilars Garden of Isis Starclock, made from old computer parts is a prime example of what Grassroots Art is all about.
Such work tends to be difficult to classify because it falls outside the sphere of fine art as well as that of traditional folk art in which skills and patterns may be passed from one generation to another.