I came across some really cheap disposable cameras last week. I ended up buying one to play around with and take some random Holga-type shots. I covered the little flash with some blue transparent plastic hoping that this would take effect in dim lighting. The film speed was 400 ISO. The only other control I had was that it was fixed-focus (obviously). Other than this it was hit-and-hope.
The photos were picked up from the lab yesterday and it was a treat to find that the exposures came out great. We might be able to use this technique in an up-coming project. Film is so soulful.