Hi - sorry I didn't pick up on this thread before. Cathy Simpson's great cartoons/illustrations were added to our gallery over the Christmas break:
http://www.no2id.net/images/index.php
We hope to feature each of them more prominently as the opportunity arises.
As you might imagine, we get quite a number of unsolicited submissions and suggestions, of which the campaign can only afford to produce and distribute very few in print. Everything we produce nationally has to fit with a clear strategy - which is why we always encourage people to try things out locally, e.g. on self-produced flyers, to see what works.
Several proven resources that we use time and again have been developed this way. See:
http://www.no2id.net/resources/graphical.php