Free stuff to use with Cardboard heroes----paper figures and terrain:
Warning--some of these may be considered derivative works.
Horror (some LARP)
http://ravensblight.com/papertoys.html
Traveller (maps and ships---have to follow link to download viewer program)
http://www.cruzan.info/trav/trav.html
Lords of The Ring-ish paper terrain
http://www.papermodels.at/index_old.html
D&D-inspired (WoTC free medieval stuff for their miniatures game) terrain
http://www.wizards.com/default.asp?x=dnd/fpm/archive
Free Web ring (oodles)
http://i.webring.com/hub?ring=papermodelwebrin
Big-3 SciFi (some LARP)
http://spsf.50megs.com/catalog.html
More sci-fi (some LARP and full-scale dolls)
http://home.1asphost.com/HomespunMagixx/downloads.asp
Sci-fi (misc. spaceships---look derivative)
http://www.ericksmodels.com/paper/models/models.html
Sci-Fi (misc spaceships and cargo pods)
http://www.iwarpapermodels.org/content/html/models.htm
Buses (yep modern coach-line buses)
http://www.geocities.com/stagecoachfan/extras/paperbus/
WW1 planes (and an aged jet or two)
http://www.paperwarbirds.com/html/pages/free.htm
Sci-fi spaceships (very original if slightly Trekish, includes LARP; also some of an original Flash Gordanish-bent screams GURPS Mars; lots of other cool stuff including full-size paper dolls Alien!)
http://www.albionrising.com/
'Working' machine papers (mod for steampunk?)
http://members.shaw.ca/billjones/PAPER_MACHINES.html