makes just about everything but meat and finished taxidermy guilty until proven innocent. It would be wise to bring along the customs service rules to educate the overzealous agents. Look around at http://www.cbp.gov/xp/cgov/trade/basic_t\\... The types of income opportunities which would not be enforceable would be street busking or other types of performances where the public pays you directly either for items you create or obtain in the U.S.