I did see a bunch of bear birthday cutouts(not teddy bears) dressed for different months for birthdays.
http://bksschoolhouse.com/shop.php?pid=13591
I thought about that, but I am really limited on space so I thought I would design a poster instead.Maybe cabins? Bees- The Buzz about Birthdays! Mrs. Smith's website uses jars and bugs. Here is the link:
http://www.smithsroom.com/our.room.htm
Do you have any pictures of your classroom?