I can't remember if I've told you guys about these, but as most of you are going into summer I might show you again.
Due to the ridiculous prices of alcohol here (roughly 3x the price, compared to most of the US) we Aussies sometimes have to... improvise. This is one great product that I have successfully used to keep taxes away from "The Man".
Basically they are just a special cap which has a pressure release valve. This allows you to ferment fruit juice in the bottle without it blowing up. The kit comes with yeast, and all you need to do is put some in some preservative free juice (apple usually, but apple and black current is very nice), put it somewhere warm and wait.
A good trick I have found is to tip about a cup of juice out and add a cup of sugar. This will increase the alcohol % up to about 8%.
The best part about it, apart from the price, is that it actually tastes pretty nice.
A case of alcoholic cider here would cost you around $40-$50. More for fancy stuff. I can make about 3L for $4. And you do not need to worry about cleaning and filling bottles, etc like you do with home-brewed beer, which was always the thing that annoyed me.
It looks like the international kit only has the lids to fit on soda bottles, so you may have to do some cleaning and decanting, but it is still less hassle than bottling individual beer bottles, if you use the largest sized soda bottles.