Arborsculpture

This post has a bunch on cool arborsculpture, for some reason these eyes caught me
http://www.trendhunter.com/trends/ornamental-arboreal-sculptures-the-art-of-arborsculpture

Drain Pipe Art

http://deputy-dog.com/2008/10/pimp-my-drainpipe.html

Urban Knitting

http://deputy-dog.com/2008/11/urban-knitting-worlds-most-inoffensive.html