When my son was in K, he asked me one day whether I liked vowels or consonants better.
I replied that I hadn't really thought about it too much, but that my Grade 2 teacher had told us that vowels were the heart of the word, and consonants were the wrapping around the heart; the consonants were important, but the words wouldn't exist without the vowels.
He replied that he preferred consonants, because vowels sounded too much like bowels.