In the late 1970s, two STAR WARS action figure-oriented Death Star playsets were sold. In the United States, Kenner’s Death Star Space Station was a four-story structure that resembled, from one side, a gun tower near the famous trench from the film. At the other end was a tall cylinder that doubled as both an elevator tube and the tractor beam control area. Outside the United States, companies such as Palitoy made a two-level, dome-shaped playset that was primarily constructed from cardboard.
This page has images of the two cardboard panels that came with the Kenner playset: http://idaho501st.com/jedi5150/blog/index.php?entry=entry130119-225712
This page has images of the various cardboard panels that comprised the mostly cardboard playset: http://www.erikstormtrooper.com/palitoyds.htm