It came from
http://www.wickedartzshop.com/index.asp (you need to search 'ZT' in the main page). They do blue and xpower grey, pre and post facelift for S2, S3, iPhone 4 and iPhone 5. Arrived in two days.
There is another one:
http://www.koolart.co.uk/image/5511/MG/ They have a Red pre-facelift, but I didn't use these.
Both have blue pre facelift ZTTs.
Plus you can get other MGs - F's TF's ZR, ZS, etc
Phones, mugs, shirts, mousemats, you name it....