Not the stores, the miniature wargaming product that you can find in the diorama section of hobby and craft stores. Ten sturdy plastic trees for around twelve dollars ain't a bad price. Check out this little gem:
|Toob Trees - 10 hard plastic trees for ten bucks.|
Thumbs up in my book, but I might have to give them an ink wash to add in some shading. Those fall foliage trees look too cartoonish.