Fall Kids' Craft: Leaf Monogram "Wreath"- Buy a big letter from a craft store, collect leaves with the kids, and help them glue it together. Could do the family initial on the door, or their own first initial for their room(s).
These centerpieces are great for the Fall wedding season! Use natural elements like leaves, pinecones, and twigs to get this effect! (To make sure the leaves don't brown, you can get fake ones from craft stores and spray with a fire proof spray!