I have a hard sided suitcase (Heys brand)...extremely light, but very strong. I've transported back bottles of Appleton rum from Jamaica...well wrapped in clothes, and in the middle of the case, and so far, no problem.
These are cans of Smirnoff Ice cooler drinks and Mott's Clamato premixed Caesars(we Canadians have to have our Caesars)
I also went out and bought one of those soft sided Thermos lunch pails to put them inside the suitcase...they hold twelve cans quite nicely.
My main concern would if they froze, would it push the pull tabs open, or would the change in air pressure collapse the cans, and cause them to leak that way.
Second question then....are these products available in Miami?