The steering wheel inserts on my GTI were a real mess as the surface of the plastic had started to come away; I reckon the person that had the car before me wore it away with rings or long nails. I looked at getting some OSIR Carbon Fibre replacements, but then remembered I haven't won the lottery.
So...
I've covered them in some vinyl carbon fibre I got from a group buy on detailingworld.co.uk
You can see some of the marks here, but they are much worse in reality.
The whole process was pretty easy, and the vinyl was surprisingly stretchy once I had warmed it up with a hairdryer and probably took about an hour including photos and refitting. Thanks to Mrs icenutter for the loan of the hairdryer!
The one on the right was the second one (which I did a better job on
)