Words Which Have Never Shared a Line Before

I think that I can safely say                      

That spanner, quack and Mandalay

Have yet to share a line of verse,

(Along with jam-tart, laugh and hearse).

Like kitten, fear, hooray and brother,

Some words just avoid each other.

It breaks poetic etiquette

For radiator, sky, baguette,

Banana, gun, sarong and whine

To share the same poetic line.

How odd: these words which were estranged,

Have thus, forever, been arranged.