Spray the chair with an all-purpose cleaner. Wipe it down with a lint-free cloth. Allow it to air dry completely.
Take the chair outside or to an extremely well-ventilated area. Place a newspaper or drop cloth over your work area.
Spray the chair with a cream- or honey-colored oil-based spray paint. Allow the spray paint to dry overnight.
Tape stencils in the pattern of wood grain to the chair, holding them in place with painter's tape. Select a dark brown color of oil-based spray paint and spray the stencils in place. Remove the painter's tape and allow the darker paint to dry overnight.
Spray the chair with a clear polyurethane finish, covering the chair with even back and forth movements. Give it 24 hours to dry.