JohnStinson,
Other than the music and books Gordon has written (as well as some things I am too tired to remember), there is no marketable merchandise. No hats, shirts, or jackets that EMP sells. Yes, you are free to make anything for your self but you can not sell anything. My husband and I make buttons and share with friends. I have a couple awesome Gordon Lightfoot purses. They are one a kinds made special for me. My friend, Kathy made a very special jacket that Gordon and all the men in the orchestra have signed. I have seen other people wearing special Lightfoot shirts.
It is not legal to make and then sell anything that has Gordon's picture or likeness. EMP ownes all the rights. Maybe we will meet during GordQuest 2008 and I can give you a button.
Good luck and best wishes for a wonderful New Year.
DSR