Dont just plant trees in your yard, plant trees for your house!:

Arborsculpture highlighted in new book
Sentinel staff report - July 14, 2005
Author Richard Reames is a man on a mission: to help people develop a better appreciation for nature, and to provide insight into the use of trees as more than just oxygen providers growing on the planet.
A commissioned arborsculptor, Reames is the author of the recently released "Arborsculpture: Solutions for a Small Planet," published by Arborsmith Studios of Williams, Ore.
Arborsculpture is the practice of shaping live tree trunks into works of art of construction. Live trees can be shaped into useful, everyday items like chairs, gazebos and tool handles, as well as sculptures such as spirals, boxes and peace signs.
Article: http://www.santacruzsentinel.com/archive/2005/July/14/style/stories/09style.htm

German Tree Dome: http://www.treedome.com/bilder.htm

Watch small movie about growing a treehouse!: http://www.treedome.com/film.htm

Plantware Cartoon (building a playground with ficus):
http://www.plantware.org/movie.html
http://www.plantware.org/index2.html

Growing a tree dome:
http://www.naturbauten.de/
http://www.lebendlaube.de/

Home Grown: http://www.loiswalpole.com/gallery5/gallery5.htm

Growing a home out of ficus: Ideas: http://www.geocities.com/Heartland/Oaks/4769/ent.htm

Growing Furnature: http://homepages.ihug.com.au/~blackash/pooktrephotos.htm
http://www.grown-furniture.co.uk/

Tree sculpture/furnature: http://www.pooktre.com/

Japanese Growing Village project:
http://www.growingvillage.com/Official_Pavilion.htm

Gilroy, Ca. Circus Trees (Bonfante Gardens):
http://www.roadsideamerica.com/tips/getAttraction.php3?tip_AttractionNo==3554

http://www.loiswalpole.com/