True Utility Trolley Dolly
I know not your typical outdoor tool but it is an extremely handy piece of kit, I never have a Pound coin when I need a shopping trolley so if this is on your car keys you can always get a trolley. The other big bonus is that it has a bottle opener and a screwdriver in it as well.
Simply pushes into the pound/euro slot in most supermarket trolleys and pulls out again to free the trolley without having to use a coin! With added bottle opener and screwdriver, this trusty stainless steel key-ring accessory will bring a smile to your face every time you use it.