A friend and I have been trying for a while to create our own set of terrain, tokens, etc. You've likely seen some of the previous posts involving laser-etching things, but here's a new neat discovery.
I wanted to make a personalized USB for my brother, and accidentally discovered basswood. It's a kind of balsa I think, and it is amazing. Acrylic can warp under the laser, cut strangely, and is immensely temperamental when it comes to trying to print anything out consistently. Basswood on the other hand, is consistent, cheap, surprisingly durable, and smells a lot less harmful to breathe in during cutting.
I'm running through painting tests now, to see how visible the grain is after painting. I can say so far black primer (vallejo surface) works a lot better than white.