Created in 1990 by two cousins, rictameter is a nine line poetry form in which the 1st and last lines are the same. The syllable count is 2/4/6/8/10/8/6/4/2.
You can learn more about this relatively young form at Wikipedia, or read some examples at Shadow Poetry.
I hope you'll join me this week in writing a poem in the form of rictameter. Please share a link to your poem or the poem itself in the comments.