Just above her eyes a black hat resides
black cat at her side cries
her straw broom begins to rise
Through the black night suddenly flies
Dark violet ribbons flow from her hair
moonlight on her face not fair
Jack O Lantern doesn't care
Scarecrow with nothing to wear
Ghouls and ghosts haunt the dark street
apples and candy to eat
goblins howl as bat wings beat
Excited children still believe it's true
each Halloween gives the cue
Great Pumpkin rises anew
by klr
At

one using 3 rhyming lines of syllables of 7, a set of 4 lines - 10, 6, 7, 8 syllables and one that is made up of 3 lines, 10, 7, 7. I deviated a bit on the second one...