Hi,
clothing comes as of the rack or tailored. I could imagine that clothing could be combined when suitably build just like a puzzle. Straight pieces like the back, sides and front can be made of regular rectangles or triangles. Only pieces like shoulders and neck may require customisation.
Hence the idea of a DIY kit for clothes that allows a fashion able person to combine various elements and patterns in a semi permanent fasion ( zippers, magnetic, velcro or otherwise ). With various elements and details a person may be able to develop reusable and distinguishable clothing.