>>967294I think Lowe's has some kits as well as a few garden centers of other stores, probably Walmart and Sam's Club. They will look similar to this picture usually. Once your kit has flushed a few times you can divide it to make more kits of your own.
There's a shit ton of info online about "growing culinary mushrooms". As well as how to DIY your own mushroom kits. One of the easiest type is Pearl Oyster mushroom (Pleurotus ostreatus) and there are a few colors you can choose from. They just need cellulose growing medium. That's sawdust, coffee ground, shredded papers, straw/hay, etc. The mushrooms normally used on pizza is Agaricus bisporus (aka button, crimini, portobello, etc) and it needs manure to grow. Horse manure is the easiest. Most people already have everything they need at home to make a mushroom kit for Pearl Oyster mushrooms aside from the actual source for the mushroom.
You can also grow these in your garden as part of your composting regiment and/or in the soil with the plants.
Check out,
fungi.commidwestgrowkits.com 