Dungeoneering dot Net has a nice selection of printable terrain tiles ostensibly for use with the Dungeons and Dragons miniatures game, but which would also work with any number of dungeon crawl games — of which there are many free ones available on this site.
Quests of Heroscape
Quests of Heroscape adds a new element to the basic Heroscape game. In it, a victory is achieved by completing a series of random quests. The rules include some professionally done quest cards.
Science Fiction Terrain From CD Spindles
We all knew that cds — especially those free ones you get in the mail — make great bases for terrain pieces. But who knew that you also could use the spindles. Here is a photo tutorial on using the spindles to make science fiction terrain pieces — such as fuel tanks, etc.
The site is in Spanish, but the photos speak for themselves.
Making Mallorn Trees
The Last Alliance has an article on making Mallorn Trees — those huge trees amongst which the elves live in The Lord of The Rings. The idea is that the trees are so large — and their branches so high that only the trunks come into play in a game.
Now, I don’t have much use for Mallorn Trees, but it occurs to me that the same technique also could be used to make the trunks of trees in, say, the Brazilian rain forest. You could use some of those Copplestone pygmies and Amazon explorers.
Making Scouring Pad Trees
Here’s a tutorial on making trees from scouring pads.. They’re very nice looking, and it looks like a fun project, but frankly you can get nice pre-made trees from a variety of sources. Still, they’re bound to be a lot cheaper, and if you’re a do-it-yourselfer ….