To begin growing your own mushrooms you will need the following for the PF tek:
-Pressure cooker Check thrift stores such as savers and goodwill, also browse your local craigslist.org listings for a cheap pressure cooker, my 8 quart set me back $50, the single most expensive peice of equipment to begin growing.
-Organic brown rice flour I found the rice flour at Sprout's grocery, any health food or organic food store should sell this.
-Vermiculite Found at nurseries, skip the big home improvement stores
-Perlite I found perlite at Home Depot, but this can also be picked up with the vermiculite at a nursery
-Canning jars (Ive seen 1/2 pint used alot, as well as 8oz and 250mL jars) Safeway, but any department store, even craft stores. Be sure to use wide mouthed tapered jars! To find out why check step 11
-Spore Syringe Can be found online, or local shops, depending on species that you wish to grow
-Aquarium/Terrarium/Large tupperware (for humidity chamber) I found a nice medium sized aquarium for $9 at a thrift store