why not just made your own - much cheaper and can be quite good fun messing around with all the ingredients. When I do it I pick out a cocktails I will be making (loads of recipes online if you are unsure) mix it all together and then pop it in the freezer, the alcoholic content in the mix stops the whole thing freezing into one solid lump (if you get it right e.g. use quite a lot of alcohol lol) but it does take a bit of practice, can be really good.
Another thing that takes less practice is buying those ice-cube bags (you can get them in tesco, sainsbury�s etc) which allow you to make hundreds of icecubes nice and easily, fill these with the individual ingredients e.g. orange ice cubes, grape fruit ice cubes etc etc (what ever you are making) and freeze them. Once they are fully set and you are ready for your cocktail simply mix up a selection of ice cubes for the recipe and pop them in your blender / food processor (if it can cope with ice) and mix them up for a few seconds until they make the slushy � then simply pour on the alcohol � give it another quick blend and then serve�.
Mmmm I want a cocktail now