Manufacturing industries are undergoing a transition from manufacturing of products towards integration of services and providing Product-Service Systems. To support this transition, creative workshops are an example of a means to be used. A number of creative methods were tested in two actual industrial cases: one aerospace and one automotive case. The findings show that it is important to pay extra attention to certain factors when conducting creative workshops for PSS-development: visualization of time perspectives, sampling of participants, focus on customer needs and making of prototypes.