Old MacDonald had a farm,
E-I-E-I-O,
And on that farm he had a cow,
E-I-E-I-O,
With a moo moo here and a moo moo there,
Here a moo, there a moo, everywhere a moo moo,
Old MacDonald had a farm,
E-I-E-I-O.

(Repeat with different animals and their sounds.)

And on that farm he had a pig,
E-I-E-I-O,
With an oink oink here and an oink oink there,
Here an oink, there an oink, everywhere an oink oink,
Old MacDonald had a farm,
E-I-E-I-O.

And on that farm he had a duck,
E-I-E-I-O,
With a quack quack here and a quack quack there,
Here a quack, there a quack, everywhere a quack quack,
Old MacDonald had a farm,
E-I-E-I-O.

You can continue with other animals, such as sheep, horses, chickens, etc.