Stick you phone to mirrors and windows!,
This review is from: Gooey skin for Apple iPhone 5/5s, Aqua (Accessory)
Customer review from the Amazon Vine Programme (What's this?)
This is a rubbery material that smells a bit like armbands. Anyway, you stick it to the back of your iPhone and the material then sticks to marble, glass or metal surfaces - i.e. you can stick it to these surfaces UPRIGHT and it won't fall off. And it works, as well, I stuck it to a window or mirrors and use your phone up against the wall (Does it work on smooth tiles?). And indeed, it does work on windows, mirrors and television screens. When you take it away it doesn't leave any sort of residue behind. I tried it on the tiles in the kitchen, and it was fine, so I used it watch a film while I was making something to eat.
My main problem is that I couldn't leave it on, as I use 'otter' boxes to keep my phone in, and it won't fit with this on the back, but it should be OK in most normal cases.