What are little boys made of, made of?

What are little boys made of, made of?
What are little boys made of, made of?
What are little boys made of?
Frog and snails and puppy dog's tails,
That's what little boys are made of.
What are little girls made of, made of?
What are little girls made of?
Sugar and spice and all things nice,
That's what little girls are made of.