Free paper crafts, models, origami from an English language, apparently Italian-hosted site. Some cars, busses, and a NYC subway train. Looks like it's just getting started with a forum, downloads, and links as of Feb 2012.

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PaperCraftSquare.com is a free papercraft site.Here you can find free papercraft to download, and you can also appreciate many paper arts.

it's all about scratchbuild design of papermodelling, mostly WW2, mecha, sci fi, diorama, etc

A blog about the paper modeling community as well as offering the designers models for free!

Paper model buildings for school projects, war gaming, or model railroad layouts. Teachers, Buy and download paper models for your next project. Our models were recently used by law enforcement to simulate a city.

PaperPino is now a totally free area where you can download paper automata & models without registation.
Simply click-download-print-build &...

you want scifi ships from tv or movie go here babylon 5 , star trek ,starwars,homeworld and others

a couple of f1 cars

Ton Noteboom's site; spacecrafts,rockets,hubble...

Phils Magnificent freebies!

Star Wars and Lego figure models.

Photo detailed planetary models - nicely shaped and detailed - and other astronomy tools and projects. Includes the planets and major moons.

Although there are no models for download at the time of this submission, the blog says that they will be made available soon. This blog has a number of nice models including quite a few Red Dwarf models.