Try saying these five times in a row!

She sells seashells by the seashore.

Fritz Fisher fishes for fresh fish.

The sinking steamer sunk.

A ship saileth south soon.

Sally's selfish selling shellfish, so Sally's shellfish seldom sell.

If neither he sells seashells
Nor she sells seashells,
Who shall sell seashells?
Shall seashells be sold?

The seething sea ceaseth seething.

I never smelled a smelt that smelled as bad as that smelt smelled.

For fine fresh fish phone Phil.

Swan, swim over the sea.
Swim, swan, swim!
Swan, swim back again.
Well swum, swan!

Seventy shuddering sailors standing silent as short,
sharp, shattering shocks shake their splendid ship.

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