eeeuww, vomit! That would mean having to drink it first. Empty Speights cans would be much more effective. Unfortunately, I don't think we export that yet, even to Australia. So, stick with the Fosters only throw full ones.
Australia's reputation for heavy drinking is not based on the strength of their beers but rather in the size of their cans.. As for the beer itself; brewed in Canada and shipped to the U.S. so they can still put the word "imported" on the cans.