DIY stands for Do It Yourself, and can refer to anything from backyard gardens to building your own house. The phrase as a movement dates back to at least the hippie era of the 1960s. A number of magazines and such relating to DIY became popular, some of which are still around as very mainstream media. Ironically, DIY is also promoted by groups such as the Church of Jesus Christ of Latter-Day Saints--and, of course, Martha Stewart.

"DIY" is a common designation in Taiwan (maybe Japan too) for anything that involves arts and crafts.