Do tongue twisters twist your tongue?

I scream, you scream, we all scream for ice cream!

 

Any noise annoys an oyster but a noisy noise annoys an oyster more.  

If a black bug bleeds black blood, what color blood does a blue bug bleed?

Of all the felt I ever felt,
I never felt a piece of felt
which felt as fine as that felt felt,
when first I felt that felt hat's felt.