For my centerpieces, I am doing vases with red gerbera daisies (to match my bouquet) and a large satin-y brown square of material under it. I'll have my favor boxes at each place setting too. Mine is really simple, but since it is outside, I figured I really didn't need a ton of decoration.
My invitations are finally going out in the mail today too. My FI and I spent 6 hours on Saturday tying ribbons on the invites, addressing, and putting on the stamps.