To get my green fix in I made this for our front door. If you have a Michaels or a JoAnns fabric grab a 40% any one item coupon out of the newspaper or online. They take each others coupons so if you find one or the other use that. It's just a cardboard letter and then I hot glued a sheet of green moss (buy it in the wreath section at either store). Then I just tacked it on a nail to the door. Looks great from the street and gives you a peek of green to get you through the next month. Probably cost around $15 and took about 15 minutes to finish. Lovez it.
If you don't feel like making one I can do it for you or you can buy one from Pottery Barn... $79xtax+shipping. I love the way they accented the white door in the photo below.