Grey Matter Games offers a free paper model of a science fiction dropship, suitable for games from 6mm – 28mm.
paper models
Gallic Counter Set For Warmaster
The League of Ordinary Gamer has a set of Gallic counters that you can use in lieu of miniatures of Gauls.
Paper Table Models
The “D4 D6 D8 D10 D12 D20” gaming blog has some free paper models of wood tables for your D&D, fantasy or medieval games.
Battlefield Props For Modern Urban Games
A great skirmish level wargames table is littered with the paraphernalia of modern life. Here’s a site where you can get free print-and-play models for things like coin-op video games, boxes, pop machines and more.