There seem to be two main paths to explore the concept of wear explicitly:
1) Utilizing existing, patinated materials in a new context. While history and use are already imbued in the new object, a user lacks strong connection to that history. Using existing materials is also a definite advantage. I would need to source these materials immediately.
2) Develop a blank canvas to receive wear. The user is quite possibly more invested in the object, but it probably requires new materials or finishes. In this scenario, I would probably need to amplify or accelerate wear in an obvious or blatant way. If the wear is imposed through touch, in what ways can the human hand leave a mark? Heat and oils of the skin are the first two obvious options. Materially, what type of finishes, coatings, or raw materials respond to touch? Paper could be an interesting material choice since its essential function is already to receive marks.