Owls to Lots of Weasleys and Bells Owls Arthur and Molly Weasley, Daniel and Julie Bell, Bill and Fleur Weasley, Andy Bell and Megan Jones, and Charlie, Percy, Ron, and Ginny Weasley
The owl brings two picture frames. One is obviously a wedding-themed frame, and instead of a picture, it just has a piece of parchment with PHOTO COMING SOON printed on it in bubbly handwriting. The other frame is obviously for a baby photo, and inside of it is a similar note saying PHOTO COMING NOVEMBER 1999. There is also some fine print asking everyone to keep it quiet until after the musical because Katie doesn't want to lose her part.
Floating Bottle to Fred Weasley
Instead of a message, Katie ends up putting a flown and several flown candles inside the bottle, charms it watertight, writes his name on the bottle and sets it out to sea.