I know that the DIY subforum is an area less traveled, so I figured I would post a link of his DIY seat dyeing project. Looks like it will come out real nice!
http://www.bimmerfest.com/forums/showthread.php?p=9032464&posted=1#post9032464
http://www.bimmerfest.com/forums/showthread.php?p=9032464&posted=1#post9032464