Sorry to flood this, but I found/remembered another few shorter ones.
For general PT (repeat every line)
Thunder, Lighting, Drizzle And Rain
Nothing but PT is on my brain
Push-ups, Sit-ups, 3 mile runs
These are the things that we do for fun
or
We got the fever, we're hot, we can't be stopped
Me and my cadre like to play this game
Some call it PT some call it a train
We all line up in a single file line
And take our time calling double-time
Heeeeeeeeey we want some PT
Heeeeeeeeey give me some PT
And when it's my turn I run out of luck
I go to call cadence and i get stuck
I Always say before I quit
C-130 rolling down the strip
or
Standing tall and looking good
We ought to be in hollywood
Standing tall and looking proud
Looking sharp and singing loud
Dress to the right and cover down
Forty inches all around
Lift your head and hold it high
The United States Army is running by
and this one might be a little edgy if they won't even let you say Party but you can always try
Around her head she wore a yellow ribbon
She wore it in the spring time and in the early month of may
And if you ask her why the hell she wore it
She wore it for the young soldier who's far far away
Around the block she pushed a baby carriage
She pushed it in the spring time and in the early month of may
And if you ask her why the hell she pushed it
She pushed it for the young soldier who's far far away
Behind the door her daddy kept a shotgun
He kept it in the spring time and in the early month of may
And if you ask him why the hell he kept it
He kept it to blow the young soldier's ass far away