Here's a miniature tree I made for spidermom in the FOC Secret Swap. About 10" high, made from toilet paper tubes, scenic foam, Claycrete, polymer clay, tiny toy birds, various papers, beads, etc.
Canopy is scenic foam for model railroad bushes and trees.
There are two rooms inside the tree.
The rooms were constructed the same as the Tower of Verbiage, in which each room was papered and decorated, and then glued together.
My favorite parts was making the little spotted mushrooms.