Poladroid is a fun, free software that allows you to drag your photo onto the desktop camera and it develops just like a Polaroid. You can watch the photo as it processes from dark gray to the final digital Polaroid result. Once the processing is complete it is automatically saved to your computer. Found via Shutter Sisters.
I borrowed the above photo from my Picture Spring class.
Either of these photos look as if they were taken in the 70’s when I had my own Polariod instant camera (and Star Wars was in theaters).