The important thing with rhymes is that they should never look as if you are saying something for the sake of getting the rhyme, except in a song which is doing that openly for comical purposes.

Otherwise rhymes should just slip in unnoticed, as if it just is happened that the right word happened to be a rhyming word. Basically, as I see it, rhyme is primarily an aid to memory, and a way of helping listeners or readers feel a sense of being at home. Part rhymes can often do that just as well, and often better. Never assume that a part rhyme means the writer just couldn't find a full rhyme.

Somnetimes in a poem or song it's possible to be completely oblivious to the fact that there are rhymes at all. I'd been reading Yeats' Easter 1916 for years before ine day I noticed it actually rhymed.