When I was a little girl Smurfs were all the rage and my sister and I created an entire Smurf world simply with markers, tape, paper and our imaginations. We drew aerial views of houses and roads and gardens for the Smurfs. An entire village. We spent more hours creating the plascape then we did actually playing with it!
It was very much like this Kraft paper idea. My son has been doing a lot of pretending lately with his toy animals and cars, so Kraft paper is on my shopping list.