I thought this site would give many great ideas.
Their mission at Howtoons is "to provide engaging content that teaches kids how to build things, combining instructions with storytelling. Howtoons has a foundation of science and engineering education, inspiring creativity through art and imagination."
This site offers PDF for downloading comics and the site features a content search.
http://www.howtoons.com/
The following link will connect you to Instructables from Howtoons. http://www.instructables.com/group/howtoons/ You can also share what you make with the world.