I had a Raspberry Pi Model A and a camera module laying around. I stumbled upon Kimondo's Digital Holga 120d project and decided to build one myself. I started off with his ideas and went my own direction where I felt necessary.
Hey did you have this at Hackaday's 10th anniversary party? I saw it and thought it was a regular Holga shooting 120. Very nice job fitting everything inside the case!
meetup page: http://www.meetup.com/Hackaday-Projects-Pasadena/photos/24968692/
First 16 are from the camera. Also this guy was my inspiration: http://kimondo.co.uk/raspberry-pi-camera-case-from-a-holga/