Stylistically, it's hard to imagine anything as stereotypically 80s as this collection of furniture and lamps. It's like the early days of 3D rendering in physical form.
That said, two of the most archetypal 80s things I can think of are that weird percussion break in the middle of “Owner of a Lonely Heart”, by Yes, and David Byrne’s huge suit. Although these are music-related, they were every bit as influential to my cohort.
The originals were prestige high-ticket items. It's interesting how the style trickled down to mass culture.
The Devil Wears Prada had a neat little scene about it: