I have been working with the Monster Energy Drink Can "Import". It has a resealable and yes Air tight top. SO far... It will carbonate beer. It does reseal and it does not leak when holding it upside down. The Downfall. There is no known way to refill it with beer easily atm.. I am in the middle of designing a sorta siphon just for this task.. I will post pictures when I achieve perfection.