I have an unbranded phone that measures 123x62x13mm and I'm looking to buy skins (preferably) or cases for it, similar to what these websites do:

But obviously, as it is an unbranded phone, there are no pre-made skins and cases available for it; the organisations mentioned above do 'custom' skins but the customization only refers to the DESIGN or picture of the skins/cases, rather than SIZE. So my question is:

Does anybody know if there are any physical stores in Auckland, or any store in general with shipping that provides this kind of service? A place where I can walk in, show them my phone, and have them measure it and make me a skin (that isn't just a simple cut-out sticker, but something similiar to the following: