I made this one two years ago. I used Hasbro´s Endor diorama
(just the bunker), the AT&AT and a lot of figures. The same
train model grass for the base (it is made of a very thin wood).
The background is made of cardboard, I printed NiubNiub´s
trees and pasted them one next to the other, then I used thin wires
to add the cardboard to the trees. I found those tree branchs in
the street, they are very thick and they seem to Endor´s trees.