Fill clear containers, baskets or a colorful plate that you have around the house with varieties of colorful miniature pumpkins and gourds, colorful leaves etc.
Cover various colorful leaves that have fallen outside with a moisturizer.Let the leaves dry completely and scatter them around the house.
You can use all shapes and sizes of pumpkins as vases for flowers. Clean out the pumpkin's flesh and seeds, then arrange your flowers inside. Just cut the stems of the flowers to fit the size of your pumpkin. Of course, florists are always full of ideas and have ready made bouquets that you could use.
Glue a variety of branches, acorns, walnuts, pinecones and other natural things found outdoors to make a topiary out of a foam forms that you can find at your local Dollar Store.