that what I said, but no I dont think you give them the right (its extremely interesting to read for that) and no he cant use your work without credidting (even online tee-shop credit your work. The commissioner can use it in all the way he want except if the artist refuse some stuff (but if the commissioner decide to use the pic for print its totally a different fight). As as say, no, the artist cant lose his right (acommissioner cant do everything with the pic) and the artist except he's clearly refuses it, cant lose the right. the most interesting and fu part concern the fan-art or the drawing from a licence. Nintendo will strike without mercy. the twitter account of ryan estrada, @forexposure_txt, could post sometime some stuff really interesting about that.