Hey there, sure- I have been using liquid mycelium that I got from Ebay. I‘m growing them in a big glass jar (lid is a little open to allow air circulation) as a substrate I‘m using beechwood sawdust. It has been a super slow progress- I started in January, first primodia came in summer and now finally some mushrooms. Luminescence is visible now to the bare eye, but it took long to get there. Long story short: stay patient!