Source: http://gizmodo.com/5597914/how-to-make-a-diy-macro-iphone-lens
Instructable user RVogel decided to create his own macro lens for the iPhone and came up with a pretty nifty solution. Basically, he took the lens from a disposable camera and repurposed it on a mount to fit an iPhone (theoretically, you can create a mount to fit any cell phone camera).
It's a pretty tough job that involves some drilling, sanding, cutting, bending wires at 90 degree angles, and more, but after you're done, you can take pictures like this:
Which is to say, not bad! His full instructions on making your own iPhone macro lens can be found here. [Instructables via Unplggd]
