The syllables are flexible, but the underlying beat structure is not. You have the rhyme scheme right – AABBA, and the beat pattern is 4 4 2 2 4, (with the 4th beat often occupied by a natural pause like a comma or period rather than a word.)
It’s fine – fits the 6/8 rythm exactly, but depends on the reader to innately hear the written start of the last line as the implicit last two beats of the line above it – those two syllables are serving as an upbeat for the last line. Parsing that is not a universal reading ability.
After hiring Marie Curie, Baron Frankenstein was able to manufacture a much-improved line of radium-powered Brides.
hmmm – athropod, well…
Those Rabbi’s and Imams and all
See a meal only fitting for Baal
Cook no arthropod
on their hearth of God
for prawns are neither parve or halal
Himself a work of fiction, as was Laura Lee Hope, putative authoress of the Bobbsey twins series
He may pose as a Patron of the Arts
Soon enough, though, his interest departs
And the wife hopes the fiddler
Will sneak away and diddle her
While her porcine spouse snores, drools, and farts.
“I’m ready for my close-up, Mr. DeMilo…”
Let me add in a good word or two
For the artworks of old Buggeroo
Not surprising at all
That he hangs on your wall
For you’ve good art taste out the wazoo.
Now matter how fancy the sash is, it can’t disguise that fact that your cannon is a strap-on.