Frozen yogurt drops- Put yogurt in plastic baggie, cut hole in corner, make drops of yogurt on a wax-paper-lined cookie sheet, freeze, DONE.  My kids might like this as something different.

Frozen yogurt melts - Used Aldi's 100 calorie greek yogurts (berry and tropical) for this, and man, it was good! suuuuuch an easy to make, quick treat/snack! My son and hubby loved too!