I have been finding all these public art works and artists that take their art to the streets, and it is all good!
I think this is an immediate way to capture attention and leave an impact.
Check out some of the photos, links and videos I have found.
I love the Reinvention of art and all it takes is a few new ideas thrown into the old mix to create something fresh, updated, relevant and provocative.

Projection artist :  Ross Ashton

 The Great Windchime
Free Summer Public Art Project 2006

The Great Windchime was the playful result of a summer-long public art project. Throughout the season, Garden visitors created personal chimes which dangled in The Great Windchime @ AMG. New life was given to old jar lids as visitors painted and decorated them with string and beads. A grand total of 2675 chimes hung on over 1800 feet of paint-dappled rope. Toddlers, parents, grandparents, local artists, and even a few elementary school teachers and their students helped make The Great Windchime @ AMG exceed the current world record of 2500 chimes spanning a distance of 1640 feet. Does that mean this is the world's largest windchime display? While the application to formally beat the world record is still being processed, we'd like to think so!

http://www.annmariegarden.org/annmarie2/windchime

For this project, recycled bottles were used to build PILLARS: Wishes for a Better World. Visitors were encouraged to write a wish, prayer, or sage advice for the world and its inhabitants in hopes of making the world a better place to live.   While famous quotes and song lyrics provided some of the inspiration, many chose to use their own voices to profess their thoughts. Advice from the participants spanned a broad range of topics; from environmental awareness (Recycle, Plant a tree, Save the Rainforests), to the importance of family (Hug your children, Love your daddy, Call your mother!), to wishes for world peace (Make love not war, Promote peace, Don’t fight with each other). Sometimes messages contradicted each other, but were equally important (Work hard, Take time to play, Follow Directions, Don’t be afraid to break the rules!). Small children even offered their advice which, although simple, was profound nonetheless (Share your toys, Listen to your mommy and daddy, Always say thank you). All in all, over 1100 wishes were made.

 As visitors walked through the pillars and read the advice, they had the opportunity to ponder their own wishes for the world, and to find encouragement and inspiration in the messages of their peers. 

http://www.annmariegarden.org/annmarie2/pillars


http://weburbanist.com/2010/03/18/big-screens-big-fun-2-simply-silly-public-art-projects/?ref=search

"Rather than waiting for people to seek out his art in museums or galleries, artist JR brings it to the streets, posting arresting black-and-white portraits of locals around the world on the walls of their neighborhoods. His goal is to give voice and representation to communities that otherwise might be obscured, like women living in Brazilian or Kenyan slums. With his latest global art initiative, theInsideOut Project, JR is spreading his mission on a scale that was previously unimaginable, by crowdsourcing personal photos and the labor of posting them."

Taken from:

http://www.good.is/post/crowdsourced-public-art-project-captures-community-spirit-around-the-world/

Inspirational Public Art:


http://www.dialogueproject.net/index.shtml

Denver Office of Cultural Affairs Presents 1.26, A sculpture by Janet Ec...

Listen to this artist speak on TED.com : Janet Echelman on "Taking imagination seriously"

"I got a call from a friend in Phoenix. An attorney in the office who'd never been interested in art, never visited the local art museum, dragged everyone she could from the building and got them outside to lie down underneath the sculpture. There they were in their business suits, laying in the grass, noticing the changing patterns of wind beside people they didn't know, sharing the rediscovery of wonder." (Janet Echelman)

I first learned about TED TV when my art instructor at the University of Missouri sat us down one day, within our drawing class, and introduced us to a few talks on TED. Elizabeth Gilbert was the first one that gave me a profound "AHA" moment when she spoke of the 'genius' that we all have. I recognized myself and the rest of my classmates in her thoughtful insights and was comforted and inspired by her fresh perspective on creativity.

The second "AHA", was listening to Janet Echelman on Taking Imagination Seriously. It struck me, as I saw her amazing net sculptures undulated in the wind, that my favorite art is the art that is accessible and visible to the general public. It catches people off guard when they notice it while in their rush to cross town or in their short lunch break, and it can have a deep and lasting impact on them within just a few seconds of noticing a new image, form or performance. It's this kind of art that derails the left brain train so that the right brain air balloon can lift them above the caos to a heightened view of the beauty around them. I believe inventive, thoughts manifested give form to formless ideas living in our imagination. It is my hope, as an art educator, help open up the imaginations of my future students and my potential school and community to appreciate the importance of nurturing both our intellect as well as our genius so that when the spirit of pure creative potential comes flying by we will grab onto it's tail and be confident that it will lead us to greater perspectives and new discoveries we all can benefit from. Conceptual art that sits in galleries or museums is interesting yet I dont see it's purpose or contribution if it's important ideas are lost in translation or kept a secret to only the privileged few that understand it's history and codes.
Maria Scuderi Oct. 10/2011