The rhyme behind the playground seesaw chant, though it comes with a strange little detail: Margery Daw has sold her bed and is sleeping on straw. The bounce of the words does most of the work.
Chanted to a swinging see-saw rhythm: rock side to side as you say it.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
See-saw, Margery Daw,
Sold her bed and lay upon straw.
How it's usually said today
See-saw, Margery Daw,
Jacky shall have a new master;
Jacky shall have but a penny a day,
Because he can't work any faster.
Traditional rhymes have no single fixed text. The main version on this page is as printed in our source edition; this one is the wording most people say today.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition