Check out this thread.
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HA! That's great. There's a site where they do similar stuff to the drawings you see on the airline safety cards...
http://www.airtoons.com
75% work safe.
EDIT: Holy cow, I just went to the site to verify my link was still up and hadn't turned into a porno site since my last visit, and I discovered that they have their own take of some of the very same survival graphics.