The classic pickled-pepper tongue twister, four lines that get harder to say the faster you go. Better as a race than a quiet read, and endlessly replayable.
A tongue twister. Say it, don't sing it, as fast as you dare.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
Peter Piper picked a peck of pickled peppers;
A peck of pickled peppers Peter Piper picked.
If Peter Piper picked a peck of pickled peppers,
Where's the peck of pickled peppers Peter Piper picked?
About this rhyme
First printed in 1813 · One tongue twister per alphabet letter
Peter Piper started life as a teaching tool. It comes from a book printed in London in 1813 called Peter Piper's Practical Principles of Plain and Perfect Pronunciation, which had one tongue twister for every letter of the alphabet. Peter got the letter P. People sometimes claim he was based on a real French pepper-grower, but there is no evidence for it, and the truth is simpler: someone needed a good run of P sounds.
Do not start fast. Say it slowly with a young child first, one word at a time, until the shape of it is familiar. Then race. Half the fun is getting it wrong and laughing, so let the tangles happen. Older children will want to beat you, so let them try.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition