I love worlds within worlds! How about puppets and drawings using toys within comic strips and TV shows! Here are four I could find from SWORD comic strips courtesy of the brilliant GACCH site - top 3: one Moonbus and two Dyna-soars on the desks . The bottom pic shows the JR21 Toys appearing in the Thunderbirds episode Give or Take A Million (courtesy of the equally awesome vintagethunderbirdstoys - check out the new GA props site on its links page!).
Are there any more?