A couple guys from Pennsylvania had a hobby... Their hobby was going to look for edible wild mushrooms.
You can do all kinds of things with them... Eat them fresh, as part of a dish. You can dehydrate them, or grind them up to a powder and use it like a spice.
However, these guys figured out how to profit from their hobby too...
They find the wild edible mushrooms, and sell them to various local businesses and restaurants.
And you know what? Another way to profit from this is to teach people, so others can also learn how to find wild edible mushrooms. Whether a book, series of videos, membership website, or something along those lines...
BUT... Very important with this one. Many wild mushrooms are poisonous. You have to really know the edible ones from the poisonous ones. Also, some mushrooms can only be eaten after cooking. So there's a learning curve... Very, very important.
Mushroom men: Local pair turning hobby into business opportunity
http://www.tribdem.com/news/in-the-s...12beb8337.html
And here's a web page on some of the variety of edible wild mushrooms...
https://tastessence.com/types-of-edible-mushrooms
Best wishes!
Dien