Here in Australia, and probably in many other parts of the world too, it's common to have an item that is passed around at a party or celebration that can be signed by the guests. "Signature Bears" are one such item, and can be decorated with veils for weddings, party hats for 21st birthdays or mortar boards for graduations... like this little guy.
The Final Roll Call digital stamp set includes this bonus coloured image. The little signature bear comes complete with messages of congratulations and encouragement.
Final Roll Call
Digital Stamp Set