Just to add it in there, before I turned into a choc-only fuss pot, I uses to mix shakes, weighing out half a pack of each into some of the below combos, usually as mousse, it was great for when I was sick of the Sam flavours....
Choc/banana
Mango/strawberry
Strawberry/banana
And come to think of it I might try butterscotch/banana if I have any old sachets knocking about.
Strawberry/mango was always a good one, can you remember when you used to get the strawberry combo opal fruits/ starburst? That's the direction that flavour combo was heading for me!