I did a photo card with three pictures of DS. One when I first met him, one when he was an older toddler, and one right before finalization.
I don't remember the wording on DS's exactly, but it was "The "X" Family Is Happy to Finally Announce the Adoption of ...." Below that had three rows of print. Something like "Into the world:July 2004."Into our home: November 2006. "A Family Forever: May 2008."
I didn't do one for DD last year. I feel badly about that (now that I'm realizing it.) She had been home for so long that it was really anticlimactic. She was already my daughter.