tongue twister:

Isn't that a bit big for a boom box?

A skunk sat on a stump.
The skunk thunk the stump stunk.
The stump thunk the skunk stunk.

Now, say that as fast as you can!

Wilber walked, whooping with weeping willows.

If a doctor doctors a doctor, would the doctor doctoring the doctor doctor the doctor who doctored the doctor?