A friend of mine recently picked up a Holga lens for his Sony NEX. The ensuing debate over why such a thing exists prompted him to ask me if I could put a usable lens mount on the holga body. After some poking around on the internet, I see many references to this being done, but no actual steps or directions. Has anyone actually done this? My own collection is almost entirely Minolta, so using the MD mount would be ideal. Any thoughts?