correction--rather than "other two" that should have said "the other items"

No graham crackers in Au? 

Not as far as I know :_|

My friend sent me some once and it was so hard not to eat them all at once. 

Where can you buy Pop Tarts? The only place I have seen them is in the imported goods section at Darrel Lea, for $12 a box

I have never seen any Twinkies in shops here.. 

Maybe the person in question doesn't live in an area that has a specialist lolly shop.. The only one we have is Darrel Lea and they only sell a few products and Twinkies aren't one of them

The Reject shop sometimes has Peanut Butter cups, but once they sell out it's often months before they get any more in.. 

I have also not see any Graham Crackers for sale here, even if they were the price would be ridiculous.. 

I personally would kill for some of those aple & cinnamon flavoured potato chips that aren't available here.

Google USA FOODS -- they supply David Jones and a number of other large chains, as well as smaller shops.

They have graham crackers, Twinkies, etc.

Goober Grape - could get it years ago in supermarkets but it's gone now and taken the joy out of my life.