Here's a quick and easy tutorial on taking macro photography pictures using your smartphone. The lenses work best with cameras having at least 5MP, with autofocus of course.
So whats so special about this mobile macro photography guide? - I found an ingenious solution. The lense that I'm using is cheap and pretty common. They are the 3W LED (High Power) lenses, they're supposed to be used for lighting, but one day I came with an idea of using these lenses for macro photography.