Open up 3D Photo.
Preview 3d styles by clicking triangles and decide if you want to take a new photo or use one from your photo library.
Since don't I want to take a picture of my jeans I want to go ahead and add a photo for my photo library
I'm going to choose one of the lamp post on the cloudy day.
Here's my lamppost turned into a rectangular prism, but if you touch the screen and move it, you can turn that 3-D figure around to what ever angle you would like
But be sure to experiment with other styles too.
You can save your new 3-D iPhone art into a gallery within the app.
And then when you're done, you can go ahead and e-mail it or send it straight to another social networking site.