This thread discusses the Content article:
Modeling supplies from unlikely places.
Those are good tips. I have a few of my own.
a) Sometimes, I use natural product to create trees. I have an old-dead bonsai tree I use as a regular tree on the gaming table. Similarly, when you break off small branches of certain trees ( I found plum trees to be the best for this), they do look like gnarled old trees. Just glue them on to a base and voila, you have your magical forres ready. If you wish for a bit of greenery on them, simply add some moss (surprisingly, can also be found outside, if you know where to look for it). If it is needle trees you fancy, do not go looking for them to the hobby store, but instead, pick up couple of cones in a forrest. They do look like pines trees and do not break when you transport them.
Another source of decent "tree stuff" are grapes. Just eat off the fruit and what you get is the grape structure. Let it dry over a heater. They are well branched and quite strong to last.
b) styrofoam. Styrofoam is a useful material for making terrain. I especially like to use the hardened one - we call it extruded styrofoam, some people call the insulation foam... what ever. If you walk by some bg constructions, you will see that they have big boards of this stuff they use to insulate the houses. How about asking them, if they have some spare stuff - perhaps cut offs?
c) I store lots of stuff in a box at home - these are all used stuff from the household. Be they broken locks, used tubes of pringles chips, washing powder boxes, broken down electronics stuff... you name it, I probably have it. It is a great source of material when you need it.
d) sand can be also obtained from construction sites.
e) small pieces of electrical wiring can be also obtained at construction sites.
f) instead of sand, I like to use soil on my bases. It is finer than sand and it is already brown, so you do not have to worry about painting brown in the first place.
g) arts stores sell acrylic paints for artists. While these paints are not that good for using on your miniatures, they are simply greeeeeat for your terrain. And they are way bigger and way cheaper than the paints we use for our models.
h) if you want to make big boulders of rocks on you bases, it is better to get chips of tree bark. Suprisinly, it often looks more rocky, than actual rocks.
i) toy stores are a great source of stuff. Just go there and look at the cheapest toys you can find. Be they plastic animals made-in-china, or small trees. Or just some building blocks, sometimes small knights or monsters. You can even buy there whole plastic castles. And they cost only a penny or so.
j) carpenters, furniture makers etc. are great source for texture materials and small pieces of wood.
k) look at various natural suff - such as birch tree seeds, flowers, moss etc. They are great for making scenic bases.