This one I discovered yesterday and found it was a fun form to use. It’s another rhyming one, so I strongly suggest you end the first line of each stanza with a word that gives you plenty of scope for rhymes. The monotetra is a series of four line stanzas, as many as you want, but there are strict rules about both rhyme and rhythm. Each line has eight syllables and four beats, so you’ll have to read it aloud to yourself to make sure it scans. The last words of each line in the stanza rhyme. The fourth line of each stanza is the first four syllables repeated.
Here’s the shadow poetry explanation
http://www.shadowpoetry.com/resources/wip/monotetra.html
And below is my example.
As usual, please leave your links in the comments. You have one week from now to hand in your copies. And have fun!

The shadows came again tonight,
I left a candle burning bright,
They seem to mock the dancing light,
Laugh at my fright, laugh at my fright.
In the darkest corner sitting,
Beneath nocturnal creatures flitting,
A form, its face your features fitting,
Hardest hitting, hardest hitting.
I close my eyes against the stare,
Of cold blue eyes their stony glare,
I see them still, though they’re not there,
Oh heart, beware, oh heart, beware.
In the lonely midnight hour,
I dream of love, our sweet rose bower,
Red rose plucked and left to cower,
Wasted flower, wasted flower.
With moonlight rising shadows shift,
Reveal the empty, thorny rift,
My fingers dying petals sift,
Your parting gift, your parting gift.