Given the absurd prices on Warhammer 40K Titan models, this paper model of a Warhammer 40K Chaos Warhound Titan may be just what you needed.
You could have a lot of fun playing a Dr. Who miniatures game. There are a couple of manufacturers who made such figures over the years, but this is a free resources site. so here's a page of free paper Dr. Who miniatures, including most of the Doctors and his companions, UNIT soldiers, various aliens, and, of course, Daleks.
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Hawks Wargames has a large selection of downloadable 10mm full color paper model science fiction buildings.
Here's a paper model of an ancient Central American style temple, just ripe for sacrifices. I think it would be terrific for a pulp action game.