I'm not sure what you mean by making/spreading mushrooms our in nature, but if you are asking about collecting spores to grow mushrooms at home, it is fairly simple. You can collect spores from most cap and stem mushrooms by placing the cap on a piece of tin foil and placing a cup over the top to keep humidity up around the cap. Those spores can be used to make a spore syringe or grow the mycelium out on agar.