Mushroom Polyculture Rolls

Does anyone make a mushroom-based roll that comes pre-seeded with guilds of compatible plants?

I'm picturing material similar to what these guys are using for packaging, but optimized to store more water (i.e. open cell structure and lots of surface area), and packaged in rolls like other people use for sod:



They'd come seeded with cover crops, nurse plants, and other seeds organized into compatible guilds. Some seeds could even have time-delays like Fukuoka-style seed balls.

You'd buy rolls of the stuff and blanket a broad area in very little time, and the plant roots would take hold before the mushroom biodegraded. It also lets you leverage a good guild design with minimal installation labor.

Does this exist?

My husband Alec and I were talking about this idea this morning. I suggested he post it here. I would love to see something like this for the suburban gardener. Plant a tree and place a mulch mat of poly culture goodness around it.