I battled google images for ideas and came up with nothing until I saw one lined with cedar. So, I tried one. I think it turned out okay. And eventually it'll turn that golden orange.
(lined it with plastic)
I have a few more to do and I'd like to try the screen for the next one. Maybe cut some holes on the outside to grow plants out of so it covers the whole thing like you suggested.
Right! Now I'm hopped up for some gardening!