I was out picking up some groceries yesterday at a local Shop Rite. I always wander through their holiday aisle to see if there is anything useful. I came across a "Skeleton Garland" with 8 hard plastic skeletons attached to a piece of twine. The skeletons are roughly 5.5 inches (14cm) tall.
Right away I saw the potential for some neat terrain pieces to be made with them. So, for $3.99 it was more than worth it.