Nomad based the design for the NomadKey USB charging cable for the Pebble Original smart watch on a key. Since you always have your keys with you when you’re out, why not have a key-sized charger on the keyring? It won’t feel like you are carrying anything extra, but you’ll have a tough, flexible charging cable made of high-grade polycarbonate from Bayer and a rubber elastomer from Dupont with you. The NomadKey has scratch-resistant metal contacts so you don’t have to worry about a protective cap, and it has the same magnetic grip as the Pebble’s charger, too. The NomadKey for Pebble Original is $19.95 from Nomad.