The master of 'rhymes' which work by virtue of a colluding nod and wink at the author's slyness was Ian Dury. An old song of his "The Jam Jar Song" has a lot of my favourites. It starts:

I was bored in my Ford
But my sister had a Lincoln
A great big pink 'un.
Makes me feel so nifty
Goin' along at fifty

A Wolsey is coolsie
But a Lancia is fancier