Fitted on my Mk2 Jazz 7 years ago, cost about £10 on ebay, stitched on , took about 2 mornings to do until I was happy with it, had to shape it around the spokes of the wheel.
At the time Honda US supplied an official version, shaped to fit the wheel better, but I think it was about £40.
I was happy with mine, it was leather, and made the wheel feel better.