Im not sure if this has already been posted but when on LL i used to make a kind of ice cream...
You do need an old food processer cos it kills the blades unless you have ice crushing ones
Put 8 ice cubes per food pack in the processor and blitz til they are small bits then add the pack and blitz again adding upto 2 tablespoons of water to get to the right consistency.....
Yeah you get some crunchy bigish lumps of ice but its really nice!