I bought this off ebay to slow down the grab and go thieves

[hoben02]

Drop Resistance Lanyard Frame Phone Shell Case for iPhone 6 4 7 Plus 5 5 L5YG eBay

 

[bberic2020]

This is an interesting idea. Does the silver button detach it from the lanyard?

 

[hoben02]

The silver ring stays attached to the string and the black plastic piece is a push button that can separate. If you click on the title it goes to ebay and there are more fotos

 

[bberic2020]

Oh cool. Thanks! This would be particularly good for travelling. Might have to get one.