Here you find lots of free paper miniatures and figure flats!
I initially copied this part of Savagepedia here, because people can now directly link to a resource of cut out paper miniatures - or "figure flats" as they are called nowadays by Pennicle. (Obviously you can use this images not only for Savage Worlds, but also for Dungeons & Dragons (aka D&D) or any other RPG.) Before you had to scroll down the Gaming Aids page on Savagepedia.
In the meantime I added lots of extra resources that are not up on savagepedia yet.
Arion Games Paper Miniature Freebies - Free samples from all genres by commercial provider
Cardboard SuperHeroes - Generic, Marvel and DC Heroes
The Fantasy Trip Pieces - Adventurers, Goblins, Kobolds, Orcs, Toltecs and more to print, cut and add to your game.
Fiery Dragon's The Castle of Shadows - Link to pdf with free fantasy counter collection
Free Paper Toys - A huge link collection to paper miniatures and 3D paper models.
Greywolf's Fonts, paper models and map tiles.
Mike's Minis - Stick figure paper minis
Models & Miniatures in Paper - Huge collection of quality models for many genres. Very cool!
Modern Ops Figure Flats - For the Modern Ops showdown game
One Monk Miniatures - Fantasy, Sci-fi, and more. Plenty of free pdf's.
Paper Soldiers for Junior Generals - A //massive// archive of historical cutout figs free to use.
Patrick's Cardboard Warriors - Cute, cartoonish, and perfect for pulp.
Planet of the Paper People - From RPG.net, new and free flats added every month.
Triple Ace Game's Daring Tales Pulp Figure Flats Preview - One page with Nazis etc.
32mm Androids & Robots" - Made with HeroMachine 2.5 (print & build instructions included).
Paper buildings and vehicles (German site)
I hope, you get some use out of these free paper minis!
Cars and Spaceships on Pup's Playground.
Aztecs, Indios and Slaves on Obsidian Serpent
Free fairies by Sanity Studios. Link at bottom of the page. They also have a lot more stuff for sale.
Paper Friends (especially super heroes and Doctor Who Paper Miniatures, some including Torchwood as photo miniatures) by Seven Wonders.
If you know any other good resource, please write a comment! I will add it to the list and you help all your fellow mini and RPG fans.