Melt the 5 cups of miniature marshmallows in pineapple juice, then let cool. Can be microwaved 1 minute at a time, stir, then another minute, until completely melted. Whip the cream. Mix diced fruit, pineapple, cooled juice/marshmallow mix, nuts and another cup miniature marshmallows and carefully fold in whipped cream. Spoon into muffin cups and freeze. I suggest silicon muffin cups because the paper liners are difficult to remove after these freeze. Just pop the frozen treats out of the cups to serve. Use regular size or miniature muffin size. Can also be put through a blender before adding whipped cream, which gives it a completely different texture but still tastes good. Sometimes we made these in the miniature muffin tins then used them as ice cubes with 7-up.