The first is super easy and is one I remember eating as a kid. Frozen grapes! They make great ice cubes for water or juice too.
Another easy treat is frozen strawberries. My husband introduced me to this yummy dessert. (He uses blueberries, but I like strawberries better.)
Place the strawberries in a bowl that can go in the freezer. Pour milk over the berries. I add a little sprinkling of sugar or sweetener (1 packet). My husband lets it sit on the counter or in the fridge for the milk to get crusty and start to freeze. I am impatient and stick it in the freezer. When the milk gets frozen or slushy like, break it up with a spoon. If there is still milk not frozen, place back in freezer. Break it up with a spoon and enjoy!