They make folding cutting tables that are heavy duty cardboard - I think JoAnn's carries them, so you can probably find it on their website or on Clotilde's. That sounds like what you are looking for.

Donna

My DH made me a 4'x4' table with a cork top, that being the size I wanted. He used a metal frame kit from Rockler, then added plywood shelves and glued a solid cork surface on the top shelf. You could get two kits, bolt them together, use a full 4'x8' plywood sheet and cover that with cork.

The JoAnn table would be a better bet if this is something you don't want to invest a lot into -- it would be simple and quick. The Rockler table is better if you are going to be doing a lot of pattern work. It will stand up to much more use -- but it will cost more.

Here is a link that might be useful: Rockler table kit