Scarf Heroine is a free print-and-play skirmish game with a cartoony steampunkish vibe. There are rules, order cards and cute cutout figures, all free for the downloading and printing.
The Miniature Wargaming Editor
Early 19th Century Wargames Rules
The prolific Tyneside Wargames Club has produced a set of free wargames rules for early 19th Century Skirmishes.
Modeling Alien Trees
Dropship Horizon has a good idea for turning pine cones into weird looking alien trees.