Here's how you do this one.
You need to watch Unlimited Blade Works to understand it.
A character called Archer chants this to produce what is known as one of the most epic fight scenes in anime history:

I am the bone of my sword
Steel is my body and fire is my blood
I have created over a thousand blades
Unknown to Death, Nor known to Life
Have withstood pain to create many weapons
Yet, those hands will never hold anything
So as I pray, unlimited blade works.

Now, make a parody!

I'll start with one that was handed into an English poetry exam. (Not by me, I swear it.)

I am the bone of my essay,
Procrastination is my body, and caffeine is my blood.
I have ignored over a thousand deadlines.
Unknown to spellcheck, nor known to passing grades.
Have withstood responsibility to fail many classes,
Yet those classes with never teach anything.
So as I hand in...UNLIMITED ESSAY WORKS!

thats just 2 funny!

I need a bit of a break from trying to build a planet, so I'll bite. No quality guaranteed.

I am the hand of my pen,
Matter is my body, and time is my blood.
I have watched over a thousand worlds,
Unknown to Endings, Nor known to Beginnings,
Have withstood failure to create fabrics,
Yet these hands will never hold blood,
So as I create, Infinite World Forges.

NM020110, do you mind if i use that as my sig? I <3 it. Its creepy yet cool.

I am the bone of my Mojo,
Testosterone is my body, and beer is my blood,
I have hit over a thousand babes,
Unaware of "Moe",
Nor known to "Kawaii"
Withstood pain to deal with manliness,
Yet these hands will never fap to anything,
So as I pray, UNLIMITED GAR WORKS!

I am the bone of my sleigh
Peace is my body, and good will is my blood
I have created over a thousand gifts
Unknown to the naughty
Nor known to the nice
Have withstood pain to create many gifts
Yet those hands will never hold anything
So as i pray...UNLIMITED GIFT WORKS!

Go right ahead.

Incidentally, that's the first time that I've been asked that question, so congratulations.

From Harry Potter and the Methods of Rationality.

I am the bone of my IHOP
stubborness is by body and emotion my blood
I have created over a thousand pieces of bacon
Unknown to sleep, Nor known to tire
Have withstood boredom to create many paychecks
Yet those jobs will never crush me
So as I pray, let me Roleplay!

Bored again...this one needs more love...

I am the pen of my hand.
Paper is my body, and ink is my blood.
One thousand books have I written.
Unknown to Truth, nor to Falsehood.
Have withstood wrath to create knowledge.
Yet, these pages will never contain understanding,
So as I write, The Great Library.