Here's what I came up with:
A Forest of Possibilities:
Mrs. Knopf's R.E.A.D.Y. Raccoons
(Responsible, Eager, Adorable, Determined Young Raccoons)
Yep, a forest theme! I found tons of resources for rain forest themes, but very little for a deciduous forest theme! I will just have to be creative I guess, but I am recruiting all the help I can get so if you have any ideas please leave a comment for me!
After that, I found this website which takes pictures from your computer and enlarges them into posters. The result is fabulous! You can choose how many sheets of paper wide your poster will be, then just print it out! The bigger you go the more pixelated it becomes. Here's an example:
Picture I used:
I haven't taped this one together or added the border yet, but here's what it looks like just laid out:
2 Sheets wide.
Thus, for just the cost of ink and paper, you can take any picture and make it as large as you want! I can think of all sorts of fabulous ideas for this, I can't wait to get in my classroom and start working now!