http://www.ukbanners.com/

internet marketing uk & website promotion uk, website advertising, internet advertising.

IDEA.

http://www.justgiving.com/charity/donate.asp?FRSId=201947
The Climate Group is an international charity working to cut greenhouse gas emissions, the principal cause of climate change/global warming. It gathers and shares the knowledge of global leaders who have already acted to reduce their emissions, proving that taking action on climate change is not only possible, but is in many cases highly profitable. Your support will enable it to identify and create new leaders, a massive priority if we are to avert dangerous climate change.

What if we was to design a badge relating to climate change, sale them at the workshop event and raise money for charity.
Something that the kids can get involve creating.