Measures intended to discourage people from smoking near schools and play areas have been backed by community leaders in Swaffham.
Breckland Council endorsed plans to introduce smoke-free zones in the district in December.
And youngsters have just over a week left to submit ideas for signs to promote the scheme.
Now, town councillors have given their support to the idea.
Mayor Anne Thorp said: “The aim of putting up these signs is to help protect the future health of our children, so we really liked the idea of involving them in their design.
“I think that the signs will certainly help discourage adults from smoking near where children are playing - all these small measures make a difference.”
And the authority’s stance has been welcomed by Marion Chapman-Allen, the district council’s executive member for public protection.
She said: “I am delighted Swaffham Town Council is backing this initiative.
“Research shows that if young people see smoking as part of everyday life they are more likely to become smokers themselves, so we hope to see this voluntary code adopted as widely as possible in areas where children play and learn.
“The future health of our young people is everyone’s concern.”
Details of how to enter the poster competition can be obtained by phoning 01362 656313 or visiting www.breckland.gov.uk/smoke-free-poster. The closing date is next Friday, March 25.