This is a great end of the year poster project for students to either work on in class or take home. In my class room, I gave them 2.5 weeks to research, design and decorate their poster in class only. Materials needed are 22x28 posterboard (which they could purchase in the library for 50 cents, or bring to class), classroom paints and markers.
Shocker: When I told them it was time to pick up, the response was "AW, MAN!" No joke, I couldn't believe it my self.
I used this as their "final grade". It's a lot more fun to look at than a research paper.