Not to brag (but to totally brag) I was down at Jonathan Adler's headquarters a few weeks ago and saw the best idea.
In his showroom, JA's gorgeous white pottery is filled with giant, fluffy feathers. Like flowers, they add beautiful texture to a room (but unlike flowers they are one-time investment). Don't get me wrong, I'm all for fresh blooms (I am the granddaughter of a florist after all). But if you have a spot in your house (like on top of a bar or console) where you don't want an empty vase, this would be a great way to keep things looking styled.