Was playing around with some different possible treehouses and decided this might be a fun shell for other people to play with. Add porches, half walls, change roofs but don't touch my walls. You can pick 1 out of 3, do all 3, move it around the lot etc, just keep original walls per tree. Use tag #treehouseshellchallenge if you decide to upload, would love to see what you make. This is just for pure fun and for the challenge! #buildchallenge #treehouse #shellchallenge #treehouseshell