Keychains for single keys are a pain in the butt. Scott Amron's new Carabiner Key lets you just latch a spare key onto whatever the hell you want to latch it onto without going through hassle of an extra link.
Black Diamond is developing carabiners that use magnetic power to lock themselves as opposed to the traditional twistlocks and screwlocks. As I'm a stay indoors kind of guy who never goes climbing, I think I just found my next keychain.
I keep my keys on a chunky carabiner because I'm forgetful, and an embarrassingly large keyring shames me into remembering. But the Bounty Hunter carabiner goes way beyond that—it packs blades into its silver body. Convenience and cutting!
Technically, MyPhoneLeash prevents your clumsy mitts from letting your phone hit the floor. In practice, it's an opportunity to make at least five "dropped calls" jokes a day. Oh, and you'll look ridiculous. That, too.