While I'm a huge proponent of patient autonomy and knowledge, it's really, really, really a bad idea to perform fecal microbiota transplantations at home, without medical equipment or training, and with an unvetted donor. I do hope that FMTs become an accepted part of medical practice -- the clinical results are more than encouraging -- but this kind of experimentation could go bad pretty fast.
FMT is already used as a treatment for c. dif here in Canada.