Today's surprise form is called the lento. That's right it rhymes with cento, but I don't see the similarities. Lento was created by a man named Lencio. You can read his post about his creation here. I really appreciate the lento he wrote that describes how to write a lento. Take a look:
written by Lencio Rodrigues
Composed in winter of Two Thousand Five,
Here is my educational attempt:
Feathering of rock and land
Sweltering heat and harsh blowing winds
Sheltering our earth as rock turns to sand
I am not exactly in love with it, but I have created a lento just the same. Perhaps you'll try one now?