I was sure I had posted something about growing mushrooms in molds to make lampshades and furniture but I can't find it. Oh, well. Here's a video on mushroom leather and mushroom lumber. It's on FB, but I don't think you have to be logged in.

https://www.facebook.com/scifrimacroscope/videos/165118680755542/

And here's a whole bunch of stuff you can grow from mushrooms

https://www.pinterest.com/sonoranmushroom/growing-mycelium-fungi-mushroo...