Ok, I really have no way of describing the DIY in the subject line.
I have an aftermarket steering wheel. Sparco to be exact. And since the horn is a bit of a pain for me to wire up on the new steering wheel, I relocated it. But now i have this hole in the center of my steering wheel. It's not bad at first, but it starts annoying you. So I decided to cover it up. I got a sheet of carbon fiber with adhesive backing from RacingDimension.com and covered it up.. nice touch if i say so myself.
The diy:
http://www.pbase.com/syclone/cfhorncover
before and after pics: