Take a look at these cool pieces by Bethan Laura Wood that evolve with use.
About these pieces:
Stain is a set of a teacups designed to improve through use. This project examines the assumption that use is damaging to a product (For example, scratches on an iPod).
The interior surface of the cup is treated so as to stain more in predetermined places. The more the cups are used, the more the pattern is revealed. Over time they will build up an individual pattern dependent on the users personal way of drinking tea.
I have a soft spot for coffee stained mugs. I don’t have any cups that have stains as fancy as these, but my favorite pieces definitely are marked from years of use.
People tend to have very strong opinions on the interior glazing of mugs. I have customers who come in wanting dark glazed interiors so there is no chance of staining. And others who want a light interior so they can see how steeped their tea is. I make some of each depending on the design of the piece. My personal preference is a lighter glaze so I can see how much milk I’ve added to my morning coffee. What’s your?