I suspect a few of us get wine by mail, especially those in small towns. I had a whole bunch of those rough cardboard cradles that are used to protect wine during shipping, and I think I found a use for them. I filled them with dirt and put my tomato, pepper and cucumber seeds in them to germinate. I have no idea if they will hold up under constant watering like a peat pot, but we shall see. I am pretty sure they will disintegrate once in the ground, so this may be a nice way to biodegrade them.
Bodhi