Knowledge about materials is a fundamental element in product design education. It involves learning engineering concept about the technical properties and selection tools. More important, this concerns developing a sensitivity to the sensorial and experiential qualities of materials. We propose Material Tinkering as a practical and creative approach to develop this sensitivity through experiential learning. Integrated with envisioning and abstract conceptualization, it leads to richer and more complete projects. The paper uses a case study. This case is an experimental educational activity applying the tinkering approach to self-produced materials, i.e. DIY materials. This method fosters students’ creativity and educates them to u...