You can develop projects by your own but if you are not good at images and would not like to subscribe to any stockphoto sites then here is the link.

http://search.creativecommons.org/

You can select between the choices.

Search for works I can use for commercial purposes.
Search for works I can modify, adapt, or build upon.

And then use that images.

thanks for the link. i will never have to do another graphic again :)