So I was wondering if I need to ask for permission in case I want post our clients prints on our blog or website. We just did a print that had a photographic image of a "famous" tv presenter with some other part of the print being some art of a well known graffiti artist. Was just about to take a snap as my wife told me not to as we don`t know if they had permission to use those images. Well I generally feel there should be no problem as those shirts were not for selling but rather for a BBQ. Ok if we print some shirts for big business I feel like we should ask but not for some private client or small company. Any advise?