Here's the thread where this same suggestion was made:
http://www.mazda6club.com/forums/read.php?TID=11687
Here's an example of the letters they will post:
by Steve 6er:
"Dear members.
Please notice that producing and selling Mazda6club stickers would be illegal since the name and design of the logo are copyrighted. We would not look kindly upon such an act.
Buying such stickers that are not official also would mean taking away an income opportunity that is important for maintaining this site for the future. Increasing numbers of members and hits will increase the need for income to pay for the dedicated server/s and maintenance. And we can't depend solely upon the grace of sponsors.
If illegal stickers are still produced and marketed, we will have some member somewhere order one. Once he or she receives them, we are forced to take action. So please, stay away from doing this and keep patient, stickers WILL be produced and sold.
As stated before, we do on the other hand not forbid anyone to cut decals for their own car. Just don't sell them.
The Mazda6club team. "