I tried following a tutorial on a vector wood grain texture, though it didn’t seem to come out as well as the tutorial. I’m assuming this has something to do with the tutorial having been made for Illustrator CS2, or 3, while I have CS6. I gave it a whirl, just the same. This was the end result:
Not terrible, but not that great, either, especially considering all the vector images of wood and wood grain textures I see on places like Shutterstock.