Most folks use their phones to capture videos and photos of people, animals, or beautiful scenes. There are many cool accessories you can pick up to turn your iPhone into a microscope or a better camera. You could always make your own. In fact, the process is not going to be as costly as some of you might think.
Instructables user Yoshinok has put together a guide that shows how you can turn your smartphone into a microscope. The project only costs $10 and about 20 minutes of your time. Just bring your nuts, drill, and ruler. A fun DIY iPhone project if you have time for it.