this works well for me when i get the munchies.

you need a blender with a shit-load of ice, a tub for your fave crystal light flavor and a BIG bowl.

i fill the blender up with ice about 3-quarters, then top with water. add one of those tubs of crystal light and blend into an icee until you get the right consistency, adding more water if needed.

the really great thing about crystal light is its mostly calorie/carb-free, and you can munch as much as you like. it satisfies my need to chew.