Saddle for a Trojan Horse

I.
I wanted to build
...a wooden saddle for
......your back,
better than
...all the other ones
......you’ve had

so I bought a box
...of your teeth......!on sale!
on a shelf under
...............neath your nails.

II.
In the back
......yard, I saw a father
............with his son,
holding a hammer,
............showin his boy
how...it
.....is...done

“You...just...hit
....the..nail....up
..on..the....head,
...ham....mer...it
...in.....to...wood.
Just...hit...the
...nail... up...‘long
..side..its...head,
.....like...any...good
..boy...should.”

III.
Your teeth, your nails,
..the ones I hammered into wood
....to build that horse.
Your nails, the ones I hammered
....into you and
hammered into
...and I hammered you
and hammered and
...hammered
......until the wood was limp.