Sadly, the cans are not available in the market and cannot be purchased and can only be won through a contest and one must hurry as only 800 of these are available. And the contest is only open for residents in the USA.
To enter, one has to respond to Mountain Dew via Twitter, FB or Instagram with an explanation of what they would sacrifice to get your hands on this can with the hashtags #ACanHasNoName #ForTheThrone #MTNDEWsweepstakes. Your sacrifices will not be considered for the challenge unless you receive a reply from the brand.
Winners will be randomly selected and notified of their status before the April 14 premiere of season eight. But yes as they mentioned, the contest is only open for residents in the USA.