Hey Blueshift, great comment. That thought had occured to me also. I havent really asked around about that one, but it seems logical that it could be put into some sort of leaf board, or even supplimented into chip and particle board. There are chip and particle board manufacturers around here too.
Im thinking of making a scaled down model of a bio digester for my mothers place. She has a yard and plenty of yard debris. It doesnt look to be too dificult. Microbes do most of the work. Not sure what id do with the methane once it's produced. Maybe an external water heater.