This is kind of a cross between performance art and experiment in accidental environmentalism. Alex Martin made this brown dress (see artist's representation to the left) and then wore it for a whole year as the first of two "Intentional Wardrobe" projects. You can read about them here.
I like this site because Martin freely shares her dress pattern and gives would-be brown dress wearers a little 101 on dressmaking. She makes it seem simple and easy and, by gosh, even I could figure out how to make one from the instructions.
If you take the time (if you have the time, natch) making clothes for yourself and others is a great way to spend it.
Thanks to "B" (once again) for giving me the 4-1-1 on a cool concept.