Meet the Printoss Smartphone Photo Instant Printer: a scanner and printer for your phone that lets you print out a Polaroid-style copy of the photo on your smartphone’s screen. You don’t need to use an app or connection between your phone and Printoss to get started.
The device has a compact design and can be set up quickly. Simply place your phone over the device, press the shutter switch the bottom of the printer, turn the knob, and you are set. More info is available here.