A mouse runs up the clock, the clock strikes one, and down he scurries again, all in six quick lines built for a ticking finger-walk up an arm or a tabletop. The rhyme's real job is counting practice disguised as a chase, since "struck one" is the whole plot. Works as well said fast as it does said slow.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
Hickory, dickory, dock!
The mouse ran up the clock;
The clock struck one,
And down he run,
Hickory, dickory, dock!
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition