Leading on from a conversation at lunch today with RM and FR. Here are some lines which feature half-rhyme. I especially like the second quatrain, by Emily Dickinson.

When have I last looked on
The round green eyes and the long wavering bodies
Of the dark leopards of the moon?
All the wild witches, those most noble ladies,

Hope is the thing with feathers
That perches in the soul,
And sings the tune without the words,
And never stops at all

And, on the other subject of changing stresses –

The rebel (noun) rebels (verb).
Proceed (verb) to the proceeds (noun).

Note how the stress changes from the first to second syllable.