I use creative commons on flickr all the time, so just to avoid lawsuit, here are the authors that have "inspired" me:

http://www.flickr.com/photos/curly0212/

http://www.flickr.com/photos/terry_wha/35442369/

For artwork that I've created, such as the stick figure doodles---at this juncture in time I have no problem with them being used for any purpose whatsoever, provided I get credit and a link back to Destructive Apathy. Email me with any questions.