I think that Lorenz Hart had entirely too much fun with "Mountain Greenery" (1926):

While you love your lover, let
Blue skies be your coverlet

and

Beans could get no keener re-
Ception in a beanery
Bless our mountain greenery home!

and

Eat and you'll grow fatter, boy.
S'matter boy?
'Atta boy!

Garrison Keillor does some fun peculiarities with rhymes, too.
-Joe-