Just note that this is an American company, so acquiring any of these might be difficult for those people here in Australia.
But if you know someone in America, or a major online store like BBTS list them, it might be possible... just expensive.

This current batch of items includes 2 mousepads, 2 pin 2-packs, and a pen holder in the shape of Unicron's head (it has an opening at the top for pens, and both eyes can hold a pen).
The Unicron pen-holder is us$60 though, which would be a fair bit over au$100 when shipped to Australia... but doesn't come out until mid next year.