One year I grew gourds. They are fun to watch grow and you get some interesting shapes and sizes. Maybe next year you can grow some for your Fall decorating.
Take one object and repeat it along a shelf or window sill, or even down a dining room table. Surround each item with something special. A circle of beaded garland, some fall leaves, pine cones, or even a toss of little acorns.
Simple idea but pretty.