Thanks @agmoore! Your "My Toe" is a good one and the last stanza made me smile. : )
To answer your question, I find it easier to tell a story when I rhyme so sometimes it just pops out as a "ditty." And, the only time I have any imagination is when I rhyme. I used to love to tell nursery rhymes to my 2 kids when they were young and made up many of my own verses to make them less boring after reading them hundreds of times. LOL!