It can happen that you live in a place where western copyright laws are not respected and companies such as Nike or Coca Cola simply have no power to collect their money from individuals. The business goes well as long as everyone in the local marketing and law enforcement system get his slice.
But that doesn't make unauthorized use of copied stuff legal if copyright laws exist. My approach is: I do not make unauthorized copies nor take part such activities for ex. by providing technical help. Even in case your client says or writes "I take the responsibility" it doesn't make you innocent if there's no legal authorization. In addition by making illegal copies you have prepared a tool for those who need something to persuade you to make more illegal copies.