I have been thinking a selection of short poems entitled the Nefarious Fairy FYI nefarious - 'flagrantly wicked or impious' - absolutely love it Somthing along the lines of four sets of quattrains, rhyming couplets, fairly absurd, but crucially based around a poetic feature cum tool. Here internal rhyme, or possibly assonance (not quite sure if it qualifies?) Can you think of anything similar? Obviously I can generate examples for alliteration for example, but anything else?