Thought on centerpieces - instead of overly matchy matchy, just do a whole bunch of different flower arrangements. Make sure there is purple in each of them, but add other colors as well. Beautiful, adds variety and works with what we already have.
Fall flowers/leaves or berries -----Falls Flowers Wedding at Rutgers Sun & Shade Garden - light bulb flower holders- so freaking cute! Possibly with fall flowers and mason jars or bottles hanging in between the light bulbs