One of my favorite sources for reading bad poems is TeenAngstPoetry.com, where sadly misguided efforts (though they felt right at the time) are submitted by their now grown up writers. Very funny stuff. And you can find everything organized into thematic categories like "I Am Alone and No One Understands My Pain" and "Obvious Metaphors."
My favorite Obvious Metaphor poem that they once posted is this little ditty from a contributor named Arran (from age 16):
Coleslaw Girl
I am the coleslaw girl
everything about me
is shredded.
where did I go
to become this mess?
grated & ripped apart
loosing my mind.
***
If anyone reading this wants to share a short poem, or line, from a teen angst riddled voice, I'd love to read it.
-danny