Just wondering what the kids ages are? An in school or out of school project?
Is there a goal of the assigned project? I know another poster said about the literacy project, that made our local paper. It really didnt cost the kids anything, they just bought in their old, used good condition books to share with others etc. Depends on the economic situation of the kids too etc. Maybe they could bring in their used good condition hats, gloves, coats etc. to donate, change collection for a global cause like Heifer International etc. , food drive,