Measure and cut the feet with a circular saw to lower the chair until your legs and the chair can fit comfortably beneath the counter. Apply felt or plastic floor protectors to the bottom of each leg.
Pry the chair seat from the frame. Measure the seat. Paint the chair as desired.
Cut a piece of thick batting to fit the top of the seat and wrap around the edges. Add 2 inches to each side measurement, and cut a piece of fabric to fit.
Place the batting and fabric on top of the seat, and wrap the fabric around the bottom. Staple the fabric in place.
Cut a piece of sticky-backed felt to fit under the seat. Remove the backing and press the felt against the bottom of the seat, covering the fabric ends.
Replace the chair seat.