Halloween Pumpkin Papier Mache Pumpkin - Use a balloon and twine to form the pumpkin sections, then add your layers of paper strips. Allow to dry overnight, then paint. Very Clever! This link also provides you with a Homemade Candy Corn recipe!
Pumpkin in a lace stocking. I've planted a bunch of mini white pumpkins. White lace stockings on them might be a nice outdoorsy Autumn touch. Inexpensive and kinda unexpected. These might be cute on the outside tables under the arbor too.