Well, not necessarily.
The Droog Rag Chair by Tejo Remy certainly confounds - or at least complicates - that definition. It is produced from the contents of 15 bags of rags, layered together like a cushy, dilapidated rainbow. In the spirit of Bourriaud's relational aesthetics, the Droog chair gives the owner the option of subsuming their own rags into the design. They remind me of Felix Gonzalez Torres's remarkable candy spills, which depend upon the interactive gesture of the viewer's consumption of each individual piece.
Plus, I just think they're gorgeous - like a Shaker rag rug for the hip eco-friendly set.