Items to get from USA

Hi,

I have some Family Coming over from the US, and I am wondering if I can get some help.

What items do you think are worth getting?(Electronic/Fashion)

Items I am thinking of getting :-

  • Nexus 7
  • Hershey backpack (http://shop.herschelsupply.com/collections/autumn/products/parkgate-backpack-camper-orange)
With regards to the backpack, I would appreciate if someone can point out other brands that do good backpacks that hold a laptop, as I do not know many american brands that specialise in backpacks.
Are there any mobile phone shops that sell sim-free phones for a cheap price? I am looking for the Xperia Z Ultra.
Again any help would be much appreciated.
:)