For Infinity and other science fiction games, here’s a paper model of a Chickenhawk dropship. It comes in a couple of different versions.
Queen’s Quest Wargame
Pandyman Games offers Queen’s Quest, a set of free wargames rules advertised as a “2d6 game using no factions.”
Rosie RetroRocket Paper Model
This one is really cute. It’s a paper model of a Buck Rogers looking girl on a retro style rocket.
Green Dragon Tavern Paper Model
Delta 7 Studios offers a paper model of the Green Dragon Tavern. The Inn was a meeting place for Patriots during the period just prior to the outbreak of hostilities in the American Revolution. It’s in pdf form and in 1/120 scale.
Back Issues of The General
I grew up reading The General, Avalon Hill’s monthly magazine featuring its games. You can find an archive of all of the original issues of The General at the link.