Some more tongue twisters:
How can a clam cram in a clean cream can?
I saw Susie sitting in a shoeshine shop
Susie works in a shoeshine shop. Where she shines she sits, and where she sits she shines
Can you can a can as a canner can can a can?
You know New York, you need New York, you know you need unique New York
I saw a kitten eating chicken in the kitchen
If a dog chews shoes, whose shoes does he choose?
I thought I thought of thinking of thanking you