The Feldmachink is a device that allows full hidden movement in any miniatures wargame system without a referee. You can get instructions for it here.
Clifford Button of Paper Tiger Armanents offers a free 1/72 scale brick structure. It was inspired by a building in the Strand district in Galveston, Texas.
Fallout is a legendary computer role playing game. Set in a post nuclear world, it has a 1950s science fiction aura. Here’s a miniatures game set in that world.
The Jim Bowens Disturbia Yahoo Group has free rules for the Gotterdammerung WWII-Horror game.
For you colonial gamers, here is a page with useful information on British and Commonwealth Orders and Decorations.