From ‘The Book of Forms’ by Lewis Turco, the Decastich is any complete poem of 10 lines. There is no mention of meter, syllable count or rhyme schematics giving a lot of scope to the poet for experimentation and exploration of ideas.
Example: Heart Fruit by Terry Clitheroe
My fantasies of you
go beyond the realm of dreams.
You have awakened my soul
and when I close my eyes
I can imagine how you feel
and how you taste when I kiss you.
Desire for your kisses sets my soul on fire
with passion licking at the flames.
You have become the food of love
the fruit of my heart