I recently did an event where I used a bird theme with purple undertones. I used wooden birdcages and bird cut outs that I covered with decorative paper. These were used as place cards and I hung a few over the table with different coloured ribbon to add a bit of depth to the over all picture.
As a party favor I stamped small wooden hearts with a small bird stamp, twisted a hook on to it and tied a small piece of ribbon to it. It looked great on the table!