A short string of promises to a baby: an apple, a plum, a rattle, all arriving when papa comes home. Simple and repetitive, good for rocking a little one while you wait for someone to walk through the door.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
You shall have an apple,
YOU shall have a plum,
You shall have a rattle,
When papa comes home.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition