Eminent poets sometimes write poems to please children. Theodore Roethke (1908-1963) succeeded, with poems that are short, funny, well-rhymed and respectful of the reader's intelligence:
In moving-slow he has no Peer.
You ask him something in his ear;
He thinks about it for a Year;
And, then, before he says a Word
There, upside down (unlike a Bird)
He will assume that you have Heard --
A most Ex-as-per-at-ing Lug.
But should you call his manner Smug,
He'll sigh and give his Branch a Hug;
Then off again to Sleep he goes,
Still swaying gently by his Toes,