why miss out on a whole different market?  They could create a variety of styles of denim pet clothing and create a commercial showing pet owners and their pets wearing similar styles of denim clothing.  This could include a girl with a jean jacket and her dog wearing the same thing, or maybe in cutoffs or overalls.  Then show how some dogs playing real crazily and slightly rough and say something to the effect of jeans as tough as your dogs are. another idea for a commercial is maybe the dogs behaving like humans going through everyday things like buying groceries, and dogs in class, or a dog party.   I also would find it funny if they showed the dogs wearing the jeans imitating a serious jean or even a cologne commerial with slow motion different camera angles of the jeans and the just the name of the pet line of levis before it fades out.