OK, hadn't heard the elephant or the scientist verses before. Hee.

Here's the verse I've been known to toss in:

We had an old sword, no one would it slay.
We had an old sword, no one would it slay.
My wife said, "Honey, this isn't funny, we're losing money."
We had an old sword, no one would it slay.
One day a rooster came into our yard
And caught that old sword right off its guard.
Now it's EGGS-calibur, just like it used-ter.
Ever since that rooster came into our yard.

-- Gary