Here is a youtube video, and Huw Richards also has one in his series, but can't find it right now.
Natural Farming How To: LAB (Lactic Acid Bacteria) - YouTubeI reckon that if you make soft cheese, the action is not rennet but bacteria (I add a mesophilic starter to mine), and the end result is the same as above. Or you can just make a batch from milk as the guy is explaining. I am not so sure if pasteurised milk would be ok for it, but mine isn't anyway.
We have just noticed that the patch on the lawn where we usually empty the whey bucket is pretty green...
I do a rough 1:10 dilution in the watering can.