Also should put in a link to Thanatos' posting about the Jay Jays Transformers t-shirts:
http://otca.invisionzone.com/index.php?showtopic=2950

(quote) Apparently there will be both G1 and Movie designs, as well as the standard Autobot/Decepticon logos, and will be selling for the RRP of $20 each shirt.

Plus from the link mentioned in the post above this one, some Christmas items:
Okay, only one item so far appears to be Christmas themed, and I don't even have a photo of it yet.
I've been seeing in Kmart, Target and TRU stores, the Movie Christmas advent calendar, for about $3. It has the month of December, and each day you open up a panel to reveal a chocolate. It's done by a UK company 'Kinnerton' in China, and imported to Australia by their local branch.
By the same company, but not Christmas themed, are a six pack of Movie chocolates. I don't think these are the same chocolates inside the advent calendar, because this six pack are 'hand decorated' and also cost about $3 at Target.

You get an Autobot and Decepticon symbol chocolate, plus a character chocolate of Optimus, Megatron, Bumblebee and Barricade. (it took me some time to work out Barricade, as it was 'painted' with red, but the shape is an exact match to the model sheet for Barricade).
Also found at Target in Victoria when I was there in October, were colour changing Mugs WITH drinking chocolate and marshmallows. I found them again at a Target store in Brisbane, and it was priced at $9.

The black spot between Megatron and Optimus (seen on the middle mug) reveals an Autobot and Decepticon symbol when the mug is heated (by a warm beverage), as shown in the mug on the right.
The drinking chocolate seems to be for just one serve (it was too diluted making two cups with it), but there are way too many marshmallows for one cup. And even having just half made the drink way too sickly sweet. Supposedly a very popular American thing to do.