So somewhere there are graffiti artists that got bored taggin' urinals and bettering outdoor advertising. http://www.graffiticreator.net/ – I love, I mean LOVE graffiti in all forms. It's the last bastion of non-violent anarchy in this world, unless you mark someone's tag and then that's your problem. If you need something to do at work create graffiti sign that says "In Box" and put it on your trash can.
If you find beauty and interest in this subject, click here for more information and sites:
• http://www.allcapsproject.com/web/
• http://www.graffiti.org
• http://www.graffiti.org/index/best.html
• http://www.bombingscience.com/