Despite helpful prior answers about squeezing polybags to determine contents, the new Unikitty! series seems pretty immune to this sort of the effort since all of them are in one of 3 shapes and there are inner bags which make it even harder to feel the parts. So I bought a bunch of polybags from two different stores in the same town. After buying 25+ polybags I'm still 5 short of the set. Is it just bad luck or is my guess of the odds that far off?