Print your camera.

Found this on Instructables
The OpenReflex is an Open-Source analog camera.
All the pieces easily printable on an recent RepRap-like ABS 3D-printer.
It's compatible with any photographic lens.

http://www.instructables.com/id/3D-Printed-Camera-OpenReflex/

That's cool. Reminds me of an optics kit/toy my parents gave me one christmas. I managed most things (like the telescope), but could never get the SLR together.