Someone requested something on the ENWorld.org forums to create a random percentage of "trees" on tiles for their DND games. So, I spit this out right quick (and for free ... lol, cause I'm no seasoned pro) I think it works, but tell me if anyone get any errors, so I might be able to fix them promptly. Thanks!
http://www.togamario.com/zip/forestgen.zip
http://www.togamario.com/zip/forestgen.zip