There is a new article online about the 1,000 balloon release with a photo of Matthew at the event! I will post more photos, hopefully, as they are released!
UPDATE: Thanks to SS we have a bunch of photos of Matt and Evanna at the event! They are all in the gallery.
and more!UPDATE 2: Added another! 😀
There is also a video of Matt and Evanna, You can also view it in the video archive: