I ordered a couple of skins for my iphone 6s plus. Ordered an extra one just in case my primary one messed up. It was much easier to install than I thought it was so I have an excess iphone 6s plus skin.
You can see the design of it here. I have the BATMAN one as I mentioned in the title. I personally went with the Darth vader one.
It costs $25 usd, yours for $25 nz including shipping