My son's birthday is October 24 so his party always has some Halloween theme. Last year, for his second birthday, I made him two pumkin cakes.
To make one I used two plain, rounded bundt pans. Once they are cooled, you place on upside down and the other right side up on top. Then you frost with orange icing. I used an ice cream cone frosted with green icing as the stem. They turned out great and everyone loved them!