Mary had a Little Lamb...

It sort of had a mother
Though the ovum was on loan
It was not so much a lambkin
As a little lamby clone

And soon it had a fellow clone
And soon it had some more
They followed her to school one day
All cramming through the door

It made the children laugh and sing
The teachers found it droll
There were too many lamby clones
For Mary to control

No other could control the sheep
Since their programs didn't vary
So the scientists resolved it all
By simply cloning Mary

But now they feel quite sheepish
Those scientists unwary
One problem solved,
but what to do with Mary, Mary, Mary...