I had a sad, sad little office chair, you know the kind, black industrial fabric, chrome and little rolly wheels. I've gotten very into steampunk and while I'm not technologically inclined enough to steampunk my computer, I did manage to do my office chair.
It involved a wine colored velvet shirt with burnout designs,a staple gun and several coats of antique gold acrylic paint.
THe middle of the shirt was smocked and just big enough to go around the rim of the chair seat. I tucked the rest of the shirt front into it to cover the seat and used the top back of the shirt as the back of the chair upholstery.
Then the seat looked fab but the chrome stuck out, so I dabbed on several layers of gold acrylic paint using a sponge brush and topped it with a coat of polyurethane. To finish it off I tied a bit of scrap fabric round the black adjustment knob in back and now I have a great victoriana/industrial chair for my craft room.