Недавно видела несколько отличных скороговорок.
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?
Betty Botter bought some butter
But she said the butter’s bitter
If I put it in my batter, it will make my batter bitter
But a bit of better butter will make my batter better
So ‘twas better Betty Botter bought a bit of better butter
How much wood would a woodchuck chuck if a woodchuck could chuck wood?
He would chuck, he would, as much as he could, and chuck as much wood
As a woodchuck would if a woodchuck could chuck wood
А еще вот отличная статья. Здесь даются разные примеры, которые помогают улучшить различные аспекты языковой речи.