My youngest child wanted a Woodland birthday party this year. We had a lot of fun meeting the challenge of planning a Woodland theme that wasn't too girly, too babyish, or too violent. (I always have to throw in that requirement when I'm having a party for little boys whose idea of a good party plan would involve many weapons and lots of uninterrupted free time to run around hitting things/people.)
We made the invitations on blank note cards. My son cut strips of scrapbook paper to be our trees. We added stickers from the Martha Stewart collection at Michael's Crafts. We added, "Join a small group of friends in the Woods for a birthday party," with all of the party details. We do not live in the woods, but we hoped to transform our home and yard into the Enchanted Woods for the party.