Yeah, been doing some reading this morning. Think I'll stick with buying wood chips and just see what happens... Also want to have another go at throwing some libs over my lawn (if I can find any). Actually did this a few years back and had some libs sprout the next couple of years. I did pick most of them, when I should have probably left alone. Maybe I should do what the guy is doing in the video above and dig them a bit into the ground rather than just scatter?
N.B. In my dad's last care home, there were morels growing from chips, and seemingly wavy caps are also pretty common on them.