Wheat shocks can be purchased at a craft store. These can be gathered into a large bundle and tied, then cut to desired height, and used as part of a centerpiece with small pumpkins and gourds all around. You can also make smaller bunches of wheat in the same way, and place one at each seat, and in the tying cord include a small place-card. These are especially suited to a rustic style table using hemp or twine dyed a fall color for the tie, or can be made more elegant by using an autumn-themed wire-edged ribbon, especially one with gold accents, or a solid gold ribbon.
Silk fall leaves can be purchased at a craft store and scattered over the table, as well as being appliquéd to placemats or table runner. They may also be glued with transparent glue to cover (in a single layer) a transparent glass container, which can then have a candle placed inside to shine through the leaves for a lovely effect.
Speaking of candles, you can also use a hairdryer on high heat and soften the wax on the surface of purchased candles, and then press real or silk fall leaves into the surface. Quickly cover with wax paper, smooth, and then remove wax paper. The dryer can be used to re-heat as necessary.
