You've still got a theme for free writing...for example:
Read the roses, and the way the say:
"Let's drown in crimson glory."
Tear the flower, leave the stem
and the bloodied thorns, peircing
Skin and heart in an effort at being romantic.
Slowly, crimson fades to pink, to black.
Slowly, the petals fall to the floor -
And Only the bloodied thorns remain
Has a theme, but it's still pretty much just free verse. (by the way, I wrote this a few weeks ago, but didnt bother to post it because I feel it's kind of substandard and Im still trying to edit it to the correct quality.)