To tell you the truth, I think i also have a problem with the pronunciation of your name SHARK, that is why I felt shy to mention your name in the "thank you letter" . SHARK , SHARK. So now I will put your name in front of the first 2 tongue twisters t you gave me if you don't mind. So here I go:
Shark was a dancing maniac, who whirled in the crowd around the world.
Shark walked wobbly and worked wordlessly, swallowing warm worms.
I really appreciate the advice you have given me!