Craftivism is a form of activism, typically for social justice, environmentalism or feminism, that is centred around practices of craft - especially handicrafts. Practitioners are known as craftivists.

Crafivism on Wikipedia with nodes to the Revolutionary Knitting Circle and Couture hacking.

Related: http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/books/non-fiction/article3328493.ece