Give me your adresse and il post you a few spoon fulls, that will be easy enough to start your own
All you will have to do is make a mix (water and oats and add a pinch of yeast) withiun a few hours of adding the few spoonfulls, they will be thousends of them
When the mix starts to smell, simply make a new mix and add a couple of spoonfulls from your old mix, repeat this process everytime its smells