The Perfect Captain Yahoo Group has a variant for their Red Actions game for the Indian Wars called Crazy Horse’s Fury.
Fred Diamond offers a free and simple set of miniatures rules for playing pony wars — US Cavalry vs Indians.
The Hawgleg site has a tutorial on using Amazing Mold Putty and Amazing Casting Resin to make models. The two products are available at stores like Hobby Lobby
I’m not at all sure what scale this free paper model of an elf tower is in. Its either a big 15mm or a small 25mm scale. In either case, it would be a nice addition to the table for a fantasy game.
Castles And Crusades is old school Dungeons and Dragons, with some clever systems that both simplify things and make the game compatible with all of yoru old (monster manuals and such. I don’t normally link to commercial products here, but I’m particularly taken with this one.
There’s also a growing community offering free supplementary materials, like the Netbook of Classes. The Netbook offers fifteen new classes, including executioner, harlequin and lore warden.