Thinking about toy processes

In the spirit of Diana, Holga, Lomo, toy camera, pinhole, Polaroid manipulations, some old historical processes, ..., is it possible, we can create some "toy" processes, for example, dipping film or paper in rain/sea/... water, to get some sort of primitive "artsy" images?

More seriously, I just read a great post about processing old E-2 slide film in mixed process of c-41 + b&w developers and yield quite useful images.

http://moominsean.blogspot.com/2009/02/e-2-slide-film-home-processing.html

Now we have C-41, RA4, E-6, K14. Compare with b&w process they are much more demanding on the equipment and chemicals. What is the best way to simply the processes and still yield some sort of images? I guess any image quality will be sufficient in this pursuit. Just to support my thoughts, here is another link to the photographic works of an European photographer:

http://www.google.com/images?hl=en&...114330851&um=1&ie=UTF-8&source=og&sa=N&tab=wi

Thanks.