I needed to change a side piece of my transmission tunnel on my 2006 Ford GT because of a broken map pocket. When I removed the old part I found the letters CK and 8/9/06 under it. Could it be the initials of someone working on the car?
Production or install date, I believe. Lots of these Easter Eggs all over these cars. I've found one under the clamshell and one under the center console when I was installing the short shifter. Markings of a hand-built car. Neat stuff.
Those would make nice consolation prizes for current owners who don't get a golden ticket. I believe that they all exist based on discussions here, but I don't recall if they are in Ford's possession.