Project Fi subscribers get free travel goodies.

If you're traveling through San José International Airport, you should stop by the new Project Fi vending machine. The Project Fi Travel Trolley (as it's called) is located across from gate 25, and is handing out free travel goodies to Fi subscribers, including eye masks, socks, and charging cables.

If you're a Fi subscriber, you can generate a unique QR code by dialing *#*#FLYWITHFI#*#* (that's *#*#359948434#*#*) on your phone. Once you get the QR code, hold it up to the machine and choose your free item. To prevent abuse, you're only eligible for one free goodie every 24 hours.

It's certainly a nifty service and a great way to brand Project Fi offline. All Google has to do now is bring these vending machines to more airports across the country.