Here it is. My masterpiece:
haiku is pleasing
if you're anal retentive
five, seven then five.
Then my rejection letter:
Dear Mr Clibrig
Thank you for your submitting a poem.
I've decided not to accept it.
John
John Bird, Editor
Haiku Dreaming Australia
http://haikudreamingaustralia.info
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(I'm sure Tennyson had a drawerful of similar letters before he hit the big time.)