Thanks to feilongfan at Livejournal.
This is what the company Shine had to say.
There are various merchandising plans in progress: including action figures, posters and books. Unfortunately, it takes some time to plan these things, and get them to the manufacturer. You should start seeing ‘Merlin’ merchandise reaching the shops in September 2009 ? just in time for series 2 to go out on BBC1.



