So, is the United States "Flag Code" an actual law?
This was an interesting read:
http://www.ushistory.org/betsy/flagetiq.html
In July 2003 President Bush autographed a small flag. This picture was circulated across the Internet noting its violation of the Flag Code: "The flag should never have placed upon it, nor on any part of it, nor attached to it any mark, insignia, letter, word, figure, design, picture, or drawing of any nature."