I have one of these, on the bottom it says it is distributed in Australia by Zak Australia Pty Inc North Clayton VIC 3168. It also has an email address firstname.lastname@example.org for comments and questions. (registered at cool gear Inc.
Mine is a few years old, so the information underneath might be out of date, but it might give you somewhere to start.
To celebrate the release of SHAUN THE SHEEP THE MOVIE, In Cinemas March 26, we are giving away 50x prize packs that include a Shaun the Sheep drink bottle, stationery set, drawstring bag and family pass to see the film.