When I was growing up my grandpa love to teach us kids tongue twisters. They still fascinate me today. I don't know why it's so hard for us to articulate these properly; I guess it's just part of language.
The following twister won the "grand prize" in a contest in Games Magazine in 1979:
Shep Schwab shopped at Scott's Schnapps shop;
One shot of Scott's Schnapps stopped Schwab's watch.
These next two are favorites of mine taught to me by grandpa:
Rubber Baby Buggy Bumper.
Red Leather, Yellow Leather.
My friends this weekend told me a new one:
What are some of the best that you know?